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.)

Until end of turn, target creature gains "When this creature dies, return it to its owner's hand."

Draw a card.

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Put a +1/+1 counter on target creature. That creature gains reach until end of turn. (It can block creatures with flying.)

Target creature gets +3/+3 until end of turn. Put a trample counter on it.

Target creature gets +1/+3 until end of turn. Put a reach counter on it. Untap it.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Untap target creature. Until end of turn, it gains hexproof, reach, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target creature."

Target creature you control gets +1/+1 until end of turn. Put a +1/+1 counter on it instead if it's a Mount. Then it deals damage equal to its power to target creature you don't control.

Until end of turn, target creature you control gains indestructible and "Whenever this creature is dealt damage, put that many +1/+1 counters on it."

Put a +1/+1 counter on target creature you control if its power is 4 or greater. Then that creature gets +1/+1 until end of turn and fights target creature you don't control.

Untap target creature. It gets +1/+4 and gains reach until end of turn.

Untap target creature. It gets +2/+2 and gains reach until end of turn.

Target creature gets +3/+3 and gains reach until end of turn. Untap it.

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.)

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

Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to up to one target creature an opponent controls.

Target creature gets +2/+2 and gains trample until end of turn. Untap it.

Target creature you control gets +1/+0 and gains vigilance until end of turn. It deals damage equal to its power to target creature an opponent controls.