When Accursed Centaur enters, sacrifice a creature.

: Boreal Centaur gets +1/+1 until end of turn. Activate only once each turn. ( can be paid with one mana from a snow source.)

: Centaur Archer deals 1 damage to target creature with flying.

Haste

Threshold — As long as seven or more cards are in your graveyard, Centaur Chieftain has "When Centaur Chieftain enters, creatures you control get +1/+1 and gain trample until end of turn."

When Centaur Healer enters, you gain 3 life.

When Centaur of Attention enters, roll five six-sided dice and store those results on it.

At the beginning of combat on your turn, you may reroll any number of Centaur of Attention's stored results.

Centaur of Attention gets +X/+X, where X is the greatest number of stored results on it of the same value.

When Centaur Peacemaker enters, each player gains 4 life.

( can be paid with either or .)

When Centaur Safeguard dies, you may gain 3 life.

Trample

Centaur Vinecrasher enters with a number of +1/+1 counters on it equal to the number of land cards in all graveyards.

Whenever a land card is put into a graveyard from anywhere, you may pay . If you do, return Centaur Vinecrasher from your graveyard to your hand.

Shroud (This creature can't be the target of spells or abilities.)

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

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

When Conclave Mentor dies, you gain life equal to its power.

, Discard a card: Crashing Centaur gains trample until end of turn.

Threshold — As long as seven or more cards are in your graveyard, Crashing Centaur gets +2/+2 and has shroud. (It can't be the target of spells or abilities.)

, : Return target enchantment card from your graveyard to your hand.

: Return target card from an opponent's graveyard to their hand. Put a +1/+1 counter on target creature.

Whenever Gaea's Courser attacks, if there are three or more creature cards in your graveyard, draw a card.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

When Greenbelt Radical is turned face up, put a +1/+1 counter on each creature you control. Creatures you control gain trample until end of turn.

Parley — Whenever Innocuous Researcher attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card.

At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn.

This spell costs less to cast for each creature card in your graveyard.

Once during each of your turns, you may cast a creature spell from your graveyard.

Kicker (You may pay an additional as you cast this spell.)

When Krosan Druid enters, if it was kicked, you gain 10 life.

When Lagonna-Band Storyteller enters, you may put target enchantment card from your graveyard on top of your library. If you do, you gain life equal to its mana value.

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

When Loaming Shaman enters, target player shuffles any number of target cards from their graveyard into their library.

When Nylea's Disciple enters, you gain life equal to your devotion to green. (Each in the mana costs of permanents you control counts toward your devotion to green.)

At the beginning of combat on your turn, target enchanted creature or enchantment creature you control gets +1/+1 and gains trample until end of turn.

Protection from black

Phantom Centaur enters with three +1/+1 counters on it.

If damage would be dealt to Phantom Centaur, prevent that damage. Remove a +1/+1 counter from Phantom Centaur.

When Pheres-Band Brawler enters, it fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)

Inspired — Whenever Pheres-Band Raiders becomes untapped, you may pay . If you do, create a 3/3 green Centaur enchantment creature token.

Inspired — Whenever Pheres-Band Tromper becomes untapped, put a +1/+1 counter on it.

Trample

Threshold — As long as seven or more cards are in your graveyard, Possessed Centaur gets +1/+1, is black, and has ", : Destroy target green creature."

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Vigilance

: Exile target creature card from a graveyard, then populate. (Create a token that's a copy of a creature token you control.)

Reach (This creature can block creatures with flying.)

Threshold — Seton's Scout gets +2/+2 as long as seven or more cards are in your graveyard.

, , Discard a card: You gain 2 life for each card in your hand.

Trample

Whenever a creature you control with trample attacks, it gets +2/+2 until end of turn.

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

Other creatures you control have haste.

Whenever one or more face-down creatures you control deal combat damage to a player, draw a card.

Whenever a face-down creature you control dies, return it to the battlefield face down under its owner's control if it's a permanent card, then turn it face up.