Chainbreaker dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
When
Chainbreaker enters,
Blasting Station triggers, untapping
Blasting Station.
Resolve the
Blasting Station ability from step 1.
Repeat.
Results
Infinite creature ETB.
Infinite creature LTB.
Infinite damage.
Infinite death triggers.
Infinite creature sacrifice triggers.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.