Groundswell

Target creature gets +2/+2 until end of turn.
Landfall — If you had a land enter the battlefield under your control this turn, that creature gets +4/+4 until end of turn instead.

Phytoburst

Target creature gets +5/+5 until end of turn.

Titanic Growth

Target creature gets +4/+4 until end of turn.

Larger Than Life

Target creature gets +4/+4 and gains trample until end of turn.

Stonewood Invocation

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Target creature gets +5/+5 and gains shroud until end of turn. (It can't be the target of spells or abilities.)

Mortal's Resolve

Target creature gets +1/+1 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Giant Growth

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

Blossoming Defense

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Llanowar Elves

Charging Badger

Giant Badger

Whenever Giant Badger blocks, it gets +2/+2 until end of turn.