Swinging with 2/2 zombies may let us draw, discard and gain life with Varina on the field, but chances are good many will die in combat
Its especially good in your deck if your mana curve is very cheap since you can use the free mode of the card without impacting your 5 or 6 mana cards
If any of the exiled cards has a characteristic-defining ability that defines its power and/or toughness, that ability will apply
While this may not seem useful, it has an ability that has it deal 1 damage to each opponent whenever you cast a non-creature spell, which we already know, we will be doing a lot of
Cards like Thornbite Staff, which untaps Krenko whenever a creature dies, can create an infinite loop with a sacrifice outlet like Skirk Prospector, generating infinite Goblins and infinite mana