All permanents in hand or on the battlefield or in exile (Exiled by the creature on the battlefield).
Easy Prerequisites
Glorious Protector must be exiled by
Yannik, and
Abdel Adrian must begin in hand.
(This starting order is not fixed, and their initial positions may be interchanged as necessary.).
Mana Needed
plus the mana cost of the creature in your hand available.
Steps
Cast
Abdel Adrian for its mana cost.
When
Abdel Adrian enters, it exiles
Yannik until
Abdel Adrian leaves the battlefield. Resolve any additional effects of
Abdel Adrian's ETB.
When
Yannik leaves the battlefield,
Glorious Protector is returned from exile to the battlefield.
When
Glorious Protector enters, it exiles
Abdel Adrian until
Glorious Protector leaves the battlefield. Resolve any additional effects of
Glorious Protector's ETB.
When
Abdel Adrian leaves the battlefield,
Yannik is returned from exile to the battlefield.
When
Yannik enters, it exiles
Glorious Protector until
Yannik leaves the battlefield. Resolve any additional effects of
Yannik's ETB.
When
Glorious Protector leaves the battlefield,
Abdel Adrian is returned from exile to the battlefield.
Repeat from step 2.
Notes
Due to differences in card templating between the various banisher effects (linked triggered abilities vs "until" clause), steps 3, 5, and 7 may return the creature to the battlefield during the resolution of the preceding step rather than creating a separate event. This should not affect the overall execution of the combo, only how many objects pass through the stack (and thus rounds of priority available per loop).
Results
Infinite +1/+1 counters on creatures you control.
Infinite blinking of nonland permanents.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature tokens.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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.