Kros, Dawnbreaker

Trample, first strike
Other creatures you control get +2/+1 and have first strike. Wolf and Werewolf creatures you control get +3/+2 and have trample and first strike instead.
At the beginning each upkeep, if no spells were cast last turn transform Kros, Dawnbreaker.
( Transforms into Kros, Midnight Champion.)