Red Riot, Unstoppable Force

Go beyond (When this creature attacks, you may
give it +5/+5 until end of turn. If you do, put a -1/-1
counter on it at the beginning of your postcombat main
phase.)
As long as Red Riot, Unstoppable Force has a
-1/-1 counter on it, it gains "Prevent all
noncombat damage that would be dealt to Red
Riot, Unstoppable Force." and "{4}{r}{r}, {t}: Transform Red Riot, Unstoppable Force."