Pheres-Band Centaurs

Polukranos, World Eater

{X}{X}{G}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)
When Polukranos becomes monstrous, it deals X damage divided as you choose among any number of target creatures your opponents control. Each of those creatures deals damage equal to its power to Polukranos.

Reverent Hunter

When this creature enters, put a number of +1/+1 counters on it equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Satyr Hedonist

{R}, Sacrifice this creature: Add {R}{R}{R}.

Satyr Piper

{3}{G}: Target creature must be blocked this turn if able.

Savage Surge

Target creature gets +2/+2 until end of turn. Untap that creature.

Sedge Scorpion

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Shredding Winds

Shredding Winds deals 7 damage to target creature with flying.

Staunch-Hearted Warrior

Heroic — Whenever you cast a spell that targets this creature, put two +1/+1 counters on this creature.

Heliod's Emissary

Bestow {6}{W} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)
Whenever this creature or enchanted creature attacks, tap target creature an opponent controls.
Enchanted creature gets +3/+3.

Sylvan Caryatid

Defender, hexproof
{T}: Add one mana of any color.

Time to Feed

Choose target creature an opponent controls. When that creature dies this turn, you gain 3 life. Target creature you control fights that creature. (Each deals damage equal to its power to the other.)

Voyaging Satyr

Vulpine Goliath

Warriors' Lesson

Until end of turn, up to two target creatures you control each gain "Whenever this creature deals combat damage to a player, draw a card."

Akroan Hoplite

Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of attacking creatures you control.

Theros