Arthas, The Ice Cronwed

Whenever a non-token creature dies amass Sindragosa 1 (Put a +1/+1 counter on an Legendary
Army you control named Sindragosa. It's also an
Zombie Dragon. If you don't control an Legendary
Army, create a 0/0 Black Zombie Dragon Army
creature token first.)
Frost Bite - Whenever a creature you control deals combat damage to a player put a stun counter on target nonland pernament that player controls.