Karra, the Devoted

Vigilance, Hexproof Whenever another legendary creature enters the battlefield under your control, put a +1/+1 counter on this creature. Whenever another legendary creature you control is dealt damage, prevent 2 of that damage. Whenever another legendary creature you control dies, Karra deals damage equal to her power to each creature your opponents control. Family Bonding (You may have up to two commanders if they both have this ability.)