Sean the Destroyer

Death-touch, First Strike, Intimidate, Double strike, Trample, Riot, Haste
Sean the Destroyer enters the battlefield with 10 plus what X is +1+1 counters.
You win the game if you control an Alexander creature or planes-walker
Sean the Destroyer can't leave the battlefield or lose ability's.
If Sean the Destroyer is negatively Affected by a card destroy that card