Hollowhenge Overlord triggers, creating four 2/2 Wolf creature tokens for each Wolf and/or Werewolf you control due to
Anointed Procession and
Bard.
Repeat step 1 during each of your upkeeps. You'll create exponentially more Wolves each time assuming the Wolf tokens survive.
Notes
The number of Wolves and/or Werewolves you'll control after performing steps 1 and 2 is equal to 5^X * Y, where X is the number of iterations of those steps you've performed (starting at 1), and Y is the initial number of Wolves and/or Werewolves you started with. So if you start with 6 creatures, you'll have 30 after the first iteration, 150 after the second, and so on. This also assumes no Wolves and/or Werewolves die, and no more are created during the turns.
Results
Near-infinite creature ETB.
Near-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.