Others work because they reinforce the games foundations, sticking true to the spirit of well-worn mechanics or color identity and being extremely effective as a result
Projektor Inspector, Vitu-Ghazi Inspector, Tunnel Tipster and Bite Down on Crime are some of its better commons
Curse of Bounty is an interesting inclusion that I really enjoy in this deck, and I think it helps speed up potentially slow precon games
It was not sold in any booster pack, theme deck or anywhere else
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The one rule of lifegain: sources feed payoffs A lifegain deck has two halves, and it is dead without both: Sources cards that gain you life, ideally incrementally and repeatedly (lifelink, whenever a creature enters triggers, upkeep gainers)