The Mantle of Kralha

This spell cannot be countered.
Whenever equipped creature deals damage to
a player, look at the top 3 cards of your library,
then the player dealt damage chooses one of
the cards at random to be exiled. You may play
that card this turn. If the card exiled has a
converted mana cost of 3 or less, you may play it
without paying its mana cost.
"An instrument who's destiny was to draw the
stars their walkways, across that phthalo sky."