Kyra, Acrobatic assassin

Skulk
Kyra, acrobatic assassin gets -1/-0 for each
creature in your party.
Whenever Kyra, acrobatic assassin deals
combat damage to a player, exile the top X
cards of your library, where X is the number
of creatures in your party. Until the end of
you next turn, you may play those cards.
"Out of my way!"