Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

You may spend mana as though it were mana of any color to activate abilities of creatures you control. Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron. {T}: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.

You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Sacrifice a creature: Add one mana of any color.

{T}: Add {C}{C}.

Equipped creature gets +2/+2 and has protection from black and from green. Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control. Equip {2}

This spell costs {X} less to cast, where X is the greatest power among creatures you control. {T}: Add {G}{G}. You gain 2 life. Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on your turn, if The Ozolith has counters on it, you may move all counters from The Ozolith onto target creature.

Flying, menace Other Insects you control have menace. Whenever one or more cards leave your graveyard, you may create a 1/1 black and green Insect creature token, then put a number of +1/+1 counters on it equal to the greatest mana value among those cards. Do this only once each turn.

{1}{G}: Create a 1/1 green Insect creature token.

You may play two additional lands on each of your turns.

Flying {B}: Battlefly Swarm gains deathtouch until end of turn.

Flying At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life." Pay 10 life: Untap all lands you control. Activate only once each turn.

Protection from green (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything green.) Creatures your opponents control can't have +1/+1 counters put on them.

Trample Crash of Rhino Beetles gets +10/+10 as long as you control ten or more lands.

When Decimator Beetle enters the battlefield, put a -1/-1 counter on target creature you control. Whenever Decimator Beetle attacks, remove a -1/-1 counter from target creature you control and put a -1/-1 counter on up to one target creature defending player controls.

Trample Whenever Giant Adephage deals combat damage to a player, create a token that's a copy of Giant Adephage.

Reach (This creature can block creatures with flying.)

({B/G} can be paid with either {B} or {G}.) Trample At the beginning of your end step, return to your hand all creature cards in your graveyard that were put there from the battlefield this turn.

Changeling (This card is every creature type.) When Graveshifter enters the battlefield, you may return target creature card from your graveyard to your hand.

Changeling (This card is every creature type.) When Guardian Gladewalker enters the battlefield, put a +1/+1 counter on target creature.

Defender (This creature can't attack.) Whenever Hornet Nest is dealt damage, create that many 1/1 green Insect creature tokens with flying and deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

At the beginning of your end step, create a 1/1 green Insect creature token for each +1/+1 counter you've put on creatures under your control this turn.

Flying Whenever a player sacrifices another permanent, put a +1/+1 counter on each creature you control.

As Metallic Mimic enters the battlefield, choose a creature type. Metallic Mimic is the chosen type in addition to its other types. Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.

Trample When Moldgraf Monstrosity dies, exile it, then return two creature cards at random from your graveyard to the battlefield.

Whenever a player sacrifices a creature, you may put a +1/+1 counter on Mortician Beetle.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Primordial Gnawer dies, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Changeling (This card is every creature type.) As Realmwalker enters the battlefield, choose a creature type. You may look at the top card of your library any time. You may cast creature spells of the chosen type from the top of your library.

At the beginning of your upkeep, if you control five or more lands, put four +1/+1 counters on Scute Mob.

Landfall — Whenever a land enters the battlefield under your control, create a 1/1 green Insect creature token. If you control six or more lands, create a token that's a copy of Scute Swarm instead.

Whenever another creature enters the battlefield, its controller may draw a card if its power is greater than each other creature's power. {G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

Haste Whenever Skullbriar, the Walking Grave deals combat damage to a player, put a +1/+1 counter on it. Counters remain on Skullbriar as it moves to any zone other than a player's hand or library.

When Spinal Centipede dies, put a +1/+1 counter on target creature you control.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on that creature instead.

All creatures have haste.

Flash Whenever a creature you control dies, each opponent sacrifices a creature.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

Whenever an opponent loses life, you gain that much life.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

If one or more tokens would be created, twice that many of those tokens are created instead. If one or more +1/+1 counters would be put on a creature, twice that many +1/+1 counters are put on that creature instead.

Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on target creature or Vehicle you control. Channel — {X}{G}{G}, Discard Roaring Earth: Put X +1/+1 counters on target land you control. It becomes a 0/0 green Spirit creature with haste. It's still a land.

Add {B}{B}{B}.

If you control a commander, you may cast this spell without paying its mana cost. Exile target creature.

Put any number of target creature cards from your graveyard on top of your library. Draw a card.

Permanents you control gain hexproof and indestructible until end of turn.

Put a +1/+1 counter on target creature. Morbid — Put three +1/+1 counters on that creature instead if a creature died this turn.

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add one mana of any color in your commander's color identity.

({T}: Add {G}.)

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Mosswort Bridge enters the battlefield tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

({T}: Add {B} or {G}.) As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle.

({T}: Add {B}.)

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents. {T}: Add {B} or {G}.

Each land is a Swamp in addition to its other land types.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Urza's Saga gains "{T}: Add {C}." II — Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'" III — Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

+2: Put two +1/+1 counters on up to one target creature. −3: Target creature you control deals damage equal to its power to target creature you don't control. −9: Creatures you control get +4/+4 and gain trample until end of turn.

Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.

Destroy all creatures. They can't be regenerated.

Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.

Search your library for a card, put that card into your hand, then shuffle.

Each opponent loses X life. You gain life equal to the life lost this way.

Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.