Escalating Conflict

Cascade, Cascade, Cascade, then counter a spell
cast this way. (To cascade, exile cards from the
top of your library until you exile a nonland card
whose mana value is less than this spell's mana value.
You may cast that card without paying its mana cost
if the resulting spell's mana value is less than this
spell's mana value. Then put all cards exiled this
way that weren't cast on the bottom of your
library in a random order, then repeat this twice)