Run Amok

Target attacking creature gets +3/+3 and gains trample until end of turn.

Arena Athlete

Heroic — Whenever you cast a spell that targets this creature, target creature an opponent controls can't block this turn.

Burst of Strength

Put a +1/+1 counter on target creature and untap it.

Snakeskin Veil

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Gaea's Gift

Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

Brute Force

Target creature gets +3/+3 until end of turn.

Forest

Satyr Hoplite

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

Setessan Oathsworn

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

Big Play

Target creature gets +2/+2 and gains reach until end of turn. Put a +1/+1 counter on it. (A creature with reach can block creatures with flying.)

Blitzball Shot

Target creature gets +3/+3 and gains trample until end of turn.

Akroan Crusader

Heroic — Whenever you cast a spell that targets this creature, create a 1/1 red Soldier creature token with haste. (It can attack and {T} as soon as it comes under your control.)