Darien triggers, creating a 1/1 Soldier creature token.
Resolve the
Phantom Train ability, putting a +1/+1 counter on it and causing it to become a Spirit artifact creature in addition to its other types until end of turn.
Repeat.
Results
Infinite +1/+1 counters on a creature.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature sacrifice triggers.
Infinite death triggers.
Infinite lifegain 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.