All permanents in hand or on the battlefield or in exile (Exiled by the creature on the battlefield).
Easy Prerequisites
Lumbering Battlement must be exiled by
Glorious Protector, and
Fiend Hunter 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
Fiend Hunter for its mana cost.
When
Fiend Hunter enters, it exiles
Glorious Protector until
Fiend Hunter leaves the battlefield. Resolve any additional effects of
Fiend Hunter's ETB.
When
Glorious Protector leaves the battlefield,
Lumbering Battlement is returned from exile to the battlefield.
When
Lumbering Battlement enters, it exiles
Fiend Hunter until
Lumbering Battlement leaves the battlefield. Resolve any additional effects of
Lumbering Battlement's ETB.
When
Fiend Hunter leaves the battlefield,
Glorious Protector is returned from exile to the battlefield.
When
Glorious Protector enters, it exiles
Lumbering Battlement until
Glorious Protector leaves the battlefield. Resolve any additional effects of
Glorious Protector's ETB.
When
Lumbering Battlement leaves the battlefield,
Fiend Hunter 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 creature ETB.
Infinite creature LTB.
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.