Muscle Sliver

Sacrifice this creature: You gain 3 life.

All Slivers have shroud. (They can't be the targets of spells or abilities.)

Buyback 3 (You may pay an additional 3 as you cast this spell. If you do, put this card into your hand as it resolves.) Return target permanent to its owner's hand.

T: Add G for each Elf on the battlefield.

Sacrifice a creature: This enchantment deals 1 damage to any target.

This spell can't be countered. Protection from blue

Destroy target creature with mana value 3 or less. It can't be regenerated.

W, T: Tap target creature. Morph W (You may cast this card face down as a 2/2 creature for 3. Turn it face up any time for its morph cost.)