Card

Fractured Identity

Mana cost {3}{W}{U}

Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.

Part of 90 known combos, 4 of them two-card. 6 official rulings.

Bracket

B1 Exhibition — Not in the same deck as its two-card combo partners: Transcendence, Phage the Untouchable, Leveler, Charismatic Conqueror
B2 Core — Not in the same deck as its two-card combo partners: Transcendence, Phage the Untouchable, Leveler, Charismatic Conqueror
B3 Upgraded — Not in the same deck as its early two-card combo partners: Transcendence, Phage the Untouchable, Leveler, Charismatic Conqueror
B4 Optimized — allowed: No restriction beyond the banned list
B5 cEDH — allowed: No restriction beyond the banned list

Two-card combo with Transcendence, Phage the Untouchable, Leveler, Charismatic Conqueror (early with Transcendence, Phage the Untouchable, Leveler, Charismatic Conqueror)

Bracket: Lotus Vault analysis, with Commander Spellbook flags

90 known combos, 4 of them two-card.

2017-08-25 · Wizards of the Coast
Any enters-the-battlefield abilities of the copied permanent will trigger when the tokens enter the battlefield. Any "As [this permanent] enters the battlefield" or "[This permanent] enters the battlefield with" abilities of the copied permanent will also work.
2017-08-25 · Wizards of the Coast
If the copied permanent had {X} in its mana cost, X is 0.
2017-08-25 · Wizards of the Coast
The tokens copy exactly what was printed on the permanent and nothing else (unless that permanent was copying something else or was a token; see below). They don't copy whether that permanent was tapped or untapped, whether it had any counters on it or Auras and/or Equipment attached to it, or any non-copy effects that changed its power, toughness, types, color, and so on.
2017-08-25 · Wizards of the Coast
If the copied permanent is a token, the tokens created by Fractured Identity copy the original characteristics of that token as stated by the effect that put it onto the battlefield.
2017-08-25 · Wizards of the Coast
If the copied permanent was copying something else, the tokens enter the battlefield as whatever that permanent was copying.
2017-08-25 · Wizards of the Coast
If the exiled permanent was a commander, the tokens won't be commanders.

Rulings: Scryfall · Wizards of the Coast