Dreadeye, Merciless Captain

Whenever you activate a torrent ability, creatures
you control get +1/+0 and trample until end of
turn.
Torrent — {3}{r}: Untap all creatures you control
that attacked this turn. After this phase, there is
an additional combat phase. Activate only as a
sorcery. (When you activate this creature's torrent ability, put it on the bottom of its owner's library at
the beginning of the next end step. Activate only once
each turn.)