Doubling Season

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.

Loxodon Hierarch

When Loxodon Hierarch enters the battlefield, you gain 4 life.
{G}{W}, Sacrifice Loxodon Hierarch: Regenerate each creature you control.

Sleek Schooner

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Zebra Unicorn

Whenever Zebra Unicorn deals damage, you gain that much life.

Graceful Antelope

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever Graceful Antelope deals combat damage to a player, you may have target land become a Plains until Graceful Antelope leaves the battlefield.

Zodiac Rabbit

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Nyx-Fleece Ram

At the beginning of your upkeep, you gain 1 life.

Trufflesnout

When Trufflesnout enters the battlefield, choose one —
• Put a +1/+1 counter on Trufflesnout.
• You gain 4 life.

Sanctuary Cat

Plains

Territorial Boar

Whenever a creature with power 4 or greater enters the battlefield under your control, Territorial Boar gets +1/+1 and gains vigilance until end of turn.

Brindle Boar

Colossal Dreadmaw

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Yasharn, Implacable Earth

When Yasharn enters the battlefield, search your library for a basic Forest card and a basic Plains card, reveal those cards, put them into your hand, then shuffle.
Players can't pay life or sacrifice nonland permanents to cast spells or activate abilities.

Cadira, Caller of the Small

Trample
Whenever Cadira, Caller of the Small deals combat damage to a player, for each token you control, create a 1/1 white Rabbit creature token.

Insatiable Appetite

You may sacrifice a Food. If you do, target creature gets +5/+5 until end of turn. Otherwise, that creature gets +3/+3 until end of turn.

Inspiring Roar

Put a +1/+1 counter on each creature you control.

Appetite for the Unnatural

Destroy target artifact or enchantment. You gain 2 life.

Forest

Nessian Boar

All creatures able to block Nessian Boar do so.
Whenever Nessian Boar becomes blocked by a creature, that creature's controller draws a card.