Ferocious Charge

Target creature gets +4/+4 until end of turn. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Army of Allah

Attacking creatures get +2/+0 until end of turn.

Muscle Burst

Target creature gets +X/+X until end of turn, where X is 3 plus the number of cards named Muscle Burst in all graveyards.

Kodama's Might

Target creature gets +2/+2 until end of turn.
Splice onto Arcane {G} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Symbiosis

Two target creatures each get +2/+2 until end of turn.

Primal Boost

Target creature gets +4/+4 until end of turn.
Cycling {2}{G} ({2}{G}, Discard this card: Draw a card.)
When you cycle Primal Boost, you may have target creature get +1/+1 until end of turn.

Sudden Strength

Target creature gets +3/+3 until end of turn.
Draw a card.

Blazing Shoal

You may exile a red card with mana value X from your hand rather than pay this spell's mana cost.
Target creature gets +X/+0 until end of turn.

Daring Leap

Target creature gets +1/+1 and gains flying and first strike until end of turn.

Unchecked Growth

Target creature gets +4/+4 until end of turn. If it's a Spirit, it gains trample until end of turn.