Aluren

Any player may cast creature spells with mana value 3 or less without paying their mana costs and as though they had flash.

Taunting Elf

All creatures able to block Taunting Elf do so.

Fyndhorn Elves

Elvish Warrior

Gaea's Herald

Llanowar Elves

Elvish Champion

Other Elf creatures get +1/+1 and have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Elvish Lyrist

{G}, {T}, Sacrifice Elvish Lyrist: Destroy target enchantment.

Coat of Arms

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Overrun

Creatures you control get +3/+3 and gain trample until end of turn.