Sameal Ayanmo, The Boss

Firstrike
At the beginning of your upkeep create an
Ancient Energy artifact token with '{x}, Sacrifice:
Exile the top X cards of your library, you may
cast a Ruft with mana value 3 or less from among
them without paying its mana cost'.
Whenever you would Exile or draw one or more
cards from your library you may Scry 1
beforehand.