Your opponent declares a monster Level from 1 to 12
Once you internalize that, the card evaluations below become obvious: ask of every card, is this a source or a payoff, and does the rest of my deck cover the other side? Best lifegain sources (the engines) You want repeatable, incremental gain lots of small triggers beat one big lifegain spell, because payoffs like Vito or Archangel of Thune care about the number of times you gain, not just the total
Then, you give it to an opponent with Zedruu's ability
Heres what Ive been running: Creatures (29) 3 Midnight Reaper 4 Knight of the Ebon Legion 4 Foulmire Knight 4 Smitten Swordmaster 4 Order of Midnight 2 Lovestruck Beast 4 Murderous Rider 4 Edgewall Innkeeper Lands (22) Spells (9) This list takes a more aggressive approach than Rolfs, moving more towards the Rakdos Knights end of the spectrum and replacing Find // Finality with Midnight Reaper as an extra card advantage mechanism
Japanese Ancient Mew I (Error), Japanese Ancient Mew I (Corrected), Japanese Ancient Mew II
Serena is also a useful card in the current format, serving as either a last-ditch draw Supporter or additional copies of Bosss Orders if needed