Satanic Pup

{t}: Tap target creature. Deals 3 damage if it was cast by a Satanic Hound. Reverts Satanic Hound's back to Satanic Pup's.
If Satanic Pup is present for more than 3 of your upkeep steps, grant it +4/+3, change it's name to Satanic Hound and summon a copy of Satanic Pup.