Nightmarish Crusader

First Strike, Lifelink, Pierce 1.
If this creature has a +1/+1 counter on it, it has trample and "when this creature deals combat damage to a player put two +1/+1 counters on this creature."
On each upkeep if 2 or more spells were cast last turn, transform this creature.
Delirium - This creature has +1/+1 and {b}: this creature gets +1/+1 until end of turn. Other wolves, werewolf and vampires have +1/+1. On your endstep, create a 2/1 vampire with flying and "{1}{b}: this creature gains lifelink