Nuts and Bolts There always seems to be a bit of interest in how these lists are made (this seems like a good time to stress once again that they are based on EDHREC score, NOT my personal opinion), and people are often surprised that Im not using any special data or .json from EDHREC, but rather just muddling my way through with some Scryfall knowledge
(To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there.) Illustrated by Wisnu Tan Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
But Im not sure this deck plays
There's certainly an argument for this as Tinker has led to some of the most broken decks ever, still sees play in Vintage despite being restricted, is a staple of Vintage Cube, and is banned in several formats
If a turn has multiple combat phases, the ability can only be activated before the beginning of the declare attackers step of the first combat phase in that turn