Callie and Snout, Inseparable

Vigilance, Hexproof, Lifelink
Whenever another Cat or Kitten enters the battlefield under your control Callie and Snout, Inseparable deals damage equal to its power to any target.
Whenever another Hamster or Guinea pig enters the battlefield under your control, draw a card.
{x}{t} Callie and Snout, Inseparable gets +2x/+0 until then end of turn.