Tribble

At the beginning of your upkeep, put a copy of this creature on battlefield.
Prevent all damage that would be dealt to Tribble.
A deck can have any number of cards named Tribble.
tribbles are native to the planet Iota Geminorum IV. They appear as small bundles of fur with no other visible features. Their coloring ranges from white and grey to black, as well as speckled brown, yellow and orange.