Frieren, Gacha Addict

While Frieren, Gacha Addict is in the command
zone, roll 2d6 on your upkeep.
Frieren, Gacha Addict's abilities only trigger on
doubles. If the results are not doubles, roll 1d4 and
draw X cards, where X is the result of the roll.
If the results are doubles, create X 1/1 Mimic artifact
creature tokens, where X is the total result of the
dice.
Mimic creatures you control have: "{t}: Add one
mana of any color to your mana pool."
You have no maximum hand size.