Kazzy and Georgie

Whenever you cast a spell that costs {3} or less, make that many 1/1 white cat tokens.
Sacrifice 10 tokens: search your library for an enchantment that costs {3} or less.
Sacrifice 5 tokens: counter target spell.
Kazzy and Georgie's power and toughness are each equal to the number of 1/1 white cat tokens that you control.
One with the meat of a chicken will quickly find these boys willing to sacrifice others for their own protection.