Lich's Mastery + Horizon Chimera

Lich's Mastery
Horizon Chimera

Requires
Lich's Mastery must be on the battlefield. Horizon Chimera must be on the battlefield.
Steps
  1. Draw a card, either with your draw step or by casting a card draw spell, which triggers Horizon Chimeria and gains you a life.
  2. Gaining a life triggers Lich's Mastery, drawing a card.
  3. Repeat to draw your library.
  4. You do not lose the game after drawing your last card because Lich's Mastery is on the battlefield.
Results
Infinite card draw.