Collosal Dreadmaw but BETTER

Trample, Protection from Blue, Forest Walk
{5}{g}{t}: Destroy target Creature. Put 2 +1/+1-Counters on Collosal Dreadmaw but BETTER.
{5}{r}{t}: Deal 5 Damage to target Player or Planeswalker. Put 2 +1/+1-Counters on Collosal Dreadmaw but BETTER.
Whenever Collosal Dreadmaw becomes tapped,
it doesn't untap in the next untap segment.