Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target creature you control gets +2/+2 until end of turn if its power is 2. Then it fights target creature you don't control. (Each deals damage equal to its power to the other.)

Target green creature you control gets +2/+2 until end of turn. It fights target green creature an opponent controls.

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.

Target creature gets +1/+1 until end of turn for each creature you control.

Target creature you control fights target creature you don't control.

Ferocious — The creature you control gets +2/+2 until end of turn before it fights if you control a creature with power 4 or greater.

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Target creature you control fights up to one target creature you don't control.

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Create a Treasure token. Until end of turn, up to one target creature gets +2/+2 for each Treasure you control.

Target creature gets +1/+1 until end of turn for each Forest you control.

Target creature you control gets +1/+1 until end of turn. You draw a card and gain 1 life.

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.

Investigate, then target creature gets +1/+1 until end of turn for each Clue you control. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

Target creature you control gets +2/+2 if it's a host or has augment. Then it fights target creature you don't control.

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 gets +1/+1 for each creature you control and gains reach.

Target creature you control gets +2/+2 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)