Sion, Relentless

Trample, haste
When a creature dealt combat damage by
Sion dies put a +1/+1 counter on Sion
Unearth {2}{b}:(Return this card from your graveyard to the battlefield. It gains haste.
Exile it at the beginning of the next
end step or if it would leave the battlefield. Unearth only as a sorcery.)