Spiteful Squad dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
When
Spiteful Squad enters,
Blasting Station triggers, untapping
Blasting Station.
Resolve the
Blasting Station ability from step 1.
Repeat.
Notes
When
Spiteful Squad dies with a +1/+1 counter on it, that counter can be placed onto another creature. If that creature had a -1/-1 counter on it, it will be removed, allowing it to be returned via persist.
Results
Infinite +1/+1 counters on creatures you control.
Infinite creature ETB.
Infinite creature LTB.
Infinite damage.
Infinite death triggers.
Infinite recursion of creatures you control.
Infinite creature sacrifice triggers.
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.