2G is very low for a card which can singlehandedly win the game like this, while two mana is cheap enough to reliably pay even if you had to use some mana to gain life in the first place (or to pay for multiple tokens per turn)
Dead Reckoning Dukhara Scavenger Golgari Thug Haunted Crossroads Hua Tuo, Honored Physician Kami of Restless Shadows Lackey Recycler Mortuary Mire Paramecia Coloniex Runo Stromkirk Volrath's Stronghold Witch's Cottage
Then you may remove up to three stun counters from among all permanents
While lots are mostly common/uncommons, there could be a chance to receive higher rarity cards
All of which, though, took a fun mechanic and made it even more fun
Theres even an alternate Japanese Mystical Archive version for each card, featuring different artwork and a new frame with artwork by Japanese artists and illustrators