Gonti, Lord of Envy

Deathtouch menace
When Gonti, Lord of Envy deals combat
defending player exiles the top four cards of their library you pick one of them and put the rest on
the bottom of their owners library. You may play
cards exiled with Gonti, Lord of Envy and you
may use Mana as though it were Mana of any
kind to play them.