({1} magic symbol) ({U} magic symbol) plus enough mana to cast the copy spell available.
Steps
Cast
Cackling Counterpart by paying its mana cost, creating a token copy of
Mirror-Mad Phantasm.
Activate the
Mirror-Mad Phantasm token by paying ({1} magic symbol) ({U} magic symbol) , shuffling the token into your library and milling your entire library due to it not having a card named
Mirror-Mad Phantasm in it.
Results
Infinite self-mill.
Metadata
Bracket tag
RuthlessBracket 4+
For competitive decks at brackets 4+
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.