Mead-Fueled Shenanigans

Creature attack each turn, if able.
Boasted creatures you control +2/+0.
Whenever one or more boasted creatures you
control deals damage to an opponent, that
players exiles the top three cards of their library.
Until end of turn, you may cast any number of
cards exiled this way with mana value X or less
without paying its mana cost, where X is the
amount of combat damage dealt this turn.