This combo has a chance of failure depending on the density of lands and creatures in your deck).
Mana Needed
, plus enough mana to cast the creature with flash available.
Steps
Cast
Green Sun's Twilight with X equal to 5 or more by paying at least .
In response, cast a creature spell with flash by paying its mana cost.
The creature enters the battlefield as a copy of
Dualcaster Mage, triggering its ETB effect, copying
Green Sun's Twilight.
Resolve that copy, revealing at least the top six cards of your library and putting a creature and/or land card from among them onto the battlefield, then putting the rest on the bottom.
Each creature or land chosen this way enters the battlefield as a copy of
Dualcaster Mage.
Repeat from step 3.
Results
Near-infinite copies of a specific creature.
Near-infinite creature ETB.
Near-infinite magecraft triggers.
Metadata
Bracket tag
ExhibitionBracket 1+
For any deck
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.