Frostbiter , Winter's Menace

When Frostbiter , Winter's Menace enters
the battlefield , you may place 3 Icicle
Counters . When this card attacks or is
attacked , place 1 Icicle Counter .
Remove at least 5 Icicle Counters from the
field , one player sends cards from the top
of the deck to the discard pile equal to the
number of Icicle Counters.