Endrider Catalyzer

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Max speed — : Add .

Cathars’ Crusade

Whenever a creature you control enters, put a +1/+1 counter on each creature you control.

Wild Hunger

Target creature gets +3/+1 and gains trample until end of turn.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Wild Hunger

Target creature gets +3/+1 and gains trample until end of turn.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Cathars’ Crusade

Whenever a creature you control enters, put a +1/+1 counter on each creature you control.

Stormtide Leviathan

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
All lands are Islands in addition to their other types.
Creatures without flying or islandwalk can’t attack.

Garruk, Caller of Beasts

+1: Reveal the top five cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.
−3: You may put a green creature card from your hand onto the battlefield.
−7: You get an emblem with “Whenever you cast a creature spell, you may search your library for a creature card, put it onto the battlefield, then shuffle.”

Master of Waves

Protection from red
Elemental creatures you control get +1/+1.
When Master of Waves enters, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Dragonlord Atarka

Flying, trample
When Dragonlord Atarka enters, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

Consuming Aberration

Consuming Aberration’s power and toughness are each equal to the number of cards in your opponents’ graveyards.
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Elvish Archdruid

Other Elf creatures you control get +1/+1.
: Add for each Elf you control.

Titan’s Strength

Target creature gets +3/+1 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Elvish Archdruid

Other Elf creatures you control get +1/+1.
: Add for each Elf you control.

Gatekeeper of Malakir

Kicker (You may pay an additional as you cast this spell.)
When this creature enters, if it was kicked, target player sacrifices a creature of their choice.

Consuming Aberration

Consuming Aberration’s power and toughness are each equal to the number of cards in your opponents’ graveyards.
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Garruk, Caller of Beasts

+1: Reveal the top five cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.
−3: You may put a green creature card from your hand onto the battlefield.
−7: You get an emblem with “Whenever you cast a creature spell, you may search your library for a creature card, put it onto the battlefield, then shuffle.”

Elvish Archdruid

Other Elf creatures you control get +1/+1.
: Add for each Elf you control.

Pridemalkin

When Pridemalkin enters, put a +1/+1 counter on target creature you control.
Each creature you control with a +1/+1 counter on it has trample. (It can deal excess combat damage to the player or planeswalker it’s attacking.)

Hinterland Harbor

Hinterland Harbor enters tapped unless you control a Forest or an Island.
: Add or .

Sadistic Shell Game

Starting with the next opponent in turn order, each player chooses a creature you don’t control. Destroy the chosen creatures.

Sadistic Shell Game

Starting with the next opponent in turn order, each player chooses a creature you don’t control. Destroy the chosen creatures.

Cathars’ Crusade

Whenever a creature you control enters, put a +1/+1 counter on each creature you control.

Constricting Sliver

Sliver creatures you control have “When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield.”