Vault 112: Sadistic Simulation
{2}{U}{R}Enchantment — Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — Tap up to one target creature and put a stun counter on it. You get {E}{E} (two energy counters). III — Pay any amount of {E}. If you paid one or more {E} this way, shuffle your library, then exile that many cards from the top. You may play one of those cards without paying its mana cost.