Sion, Undead Juggernaut

Health: 10, Level: 4
If Sion is defeated when a champion dies, return
him to the battlefield. If three or more minions
attack Sion, they cannot be blocked this turn.
Levels 4-9: When minions deal combat damage to
Sion, he deals damage to them equal to his health.
Level 10: When a minion you control becomes blocked, Sion deals damage to that minion equal
to his health.
Whenever Sion kills three or more minions in a
single turn, level up.