Xarz, Relentless Smasher

Flying, trample, wreckage (Whenever a creature dies from combat damage dealt by this creature, if it is the first combat main phase this turn, at the end of that phase, there's an additional combat phase. At the beginning of that combat, untap all creatures that
attacked this turn.)
Attacking creatures you control during extra
combat phases get +2/+0.
"I AM pain."