If a source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Whenever Blossoming Bogbeast attacks, you gain 2 life. Then creatures you control gain trample and get +X/+X until end of turn, where X is the amount of life you gained this turn.

All creatures able to block Breaker of Armies do so.

Flying Poison Breath — When Green Dragon enters the battlefield, until end of turn, whenever a creature an opponent controls is dealt damage, destroy it.

Hungering Hydra enters the battlefield with X +1/+1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering Hydra is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

Indestructible Whenever Predator Ooze attacks, put a +1/+1 counter on it. Whenever a creature dealt damage by Predator Ooze this turn dies, put a +1/+1 counter on Predator Ooze.

As long as it's your turn, Radha, Heart of Keld has first strike. You may look at the top card of your library any time, and you may play lands from the top of your library. {4}{R}{G}: Radha gets +X/+X until end of turn, where X is the number of lands you control.

Whenever a creature you control becomes blocked, it gets +1/+1 until end of turn. {1}{G}: Target creature you control gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

{T}, Sacrifice a creature: Bloodshot Cyclops deals damage equal to the sacrificed creature's power to any target.

As long as Fireblade Charger is equipped, it has haste. When Fireblade Charger dies, it deals damage equal to its power to any target.

Hexproof from black Whenever Garruk's Harbinger deals combat damage to a player or planeswalker, look at that many cards from the top of your library. You may reveal a creature card or Garruk planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Trample Play with the top card of your library revealed. You may cast creature spells from the top of your library. (Do this only any time you could cast that creature spell. You still pay the spell's costs.)

When Heart-Piercer Manticore enters the battlefield, you may sacrifice another creature. When you do, Heart-Piercer Manticore deals damage equal to that creature's power to any target. Embalm {5}{R} ({5}{R}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Manticore with no mana cost. Embalm only as a sorcery.)

Trample Other creatures you control have trample.

Whenever one or more creatures you control fight or become blocked, draw a card. At the beginning of combat on your turn, you may pay {2}{R/G}. If you do, double target creature's power until end of turn. That creature must be blocked this combat if able. ({R/G} can be paid with either {R} or {G}.)

Trample Other creatures you control have trample.

Trample Whenever Rapacious One deals combat damage to a player, create that many 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}."

{1}{R}{R}: Spikeshot Elder deals damage equal to its power to any target.

Pack tactics — Whenever Targ Nar, Demon-Fang Gnoll attacks, if you attacked with creatures with total power 6 or greater this combat, attacking creatures get +1/+0 until end of turn. {2}{R}{G}: Double Targ Nar's power and toughness until end of turn.

When Thragtusk enters the battlefield, you gain 5 life. When Thragtusk leaves the battlefield, create a 3/3 green Beast creature token.

Whenever you cast a creature spell, draw a card.

Whenever another creature with power 3 or greater enters the battlefield under your control, you may draw a card.

+1: Create a 3/3 green Beast creature token. −3: Draw cards equal to the greatest power among creatures you control. −6: Create a 6/6 green Wurm creature token for each land you control.

Choose target creature you control. Whenever that creature deals combat damage to a player or planeswalker this turn, draw that many cards.

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Choose one — • Draw cards equal to the greatest power among non-Human creatures you control. • Non-Human creatures you control get +3/+3 until end of turn.

Draw cards equal to the greatest power among creatures you control. You may cast a spell with mana value 5 or less from your hand without paying its mana cost.

Draw cards equal to the power of target creature you control.

This spell can't be countered. Indestructible Toski, Bearer of Secrets attacks each combat if able. Whenever a creature you control deals combat damage to a player, draw a card.

Whenever a creature you control with toughness 4 or greater dies, draw a card.

Choose one — • Two-Weapon Fighting — Double target creature's power and toughness until end of turn. • Archery — This spell deals 5 damage to target creature with flying.

Target creature you control deals damage equal to its power to another target creature.

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

Choose one. If you control a commander as you cast this spell, you may choose both. • Until end of turn, any number of target lands you control become 1/1 Elemental creatures with vigilance, indestructible, and haste. They're still lands. • Choose target creature you don't control. Each creature you control deals damage equal to its power to that creature.

Target creature you control fights another target creature. (Each deals damage equal to its power to the other.)

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Target creature you control deals damage equal to its power to target creature you don't control. If the creature you control has trample, excess damage is dealt to that creature's controller instead.

Target creature you control deals damage equal to its power to any target.

Target creature gains double strike until end of turn. Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

{T}: Add {C}. {3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

({T}: Add {G}.)

({T}: Add {R}.)

Enchant creature All creatures able to block enchanted creature do so.

All creatures able to block target creature this turn do so. Ferocious — That creature gains indestructible until end of turn if you control a creature with power 4 or greater.

All creatures able to block Shinen of Life's Roar do so. Channel — {2}{G}{G}, Discard Shinen of Life's Roar: All creatures able to block target creature this turn do so.

All creatures able to block Taunting Elf do so.

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

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

When Farhaven Elf enters the battlefield, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Fertilid enters the battlefield with two +1/+1 counters on it. {1}{G}, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.

{1}, {T}: Add {R}{G}.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

Kicker {4} (You may pay an additional {4} as you cast this spell.) Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If this spell was kicked, put two +1/+1 counters on each creature you control.

Trample Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player.