You control at least nine other nontoken creatures.
This pre-requisite can be reduced if you control one or more nontoken Angels with toughness 2+, or if you have creature cards in your graveyard plus additional mana and/or Blood tokens.
Steps
Activate
Shilgengar's first ability by sacrificing another nontoken creature, creating at least one Blood artifact token.
Repeat step 1 until you control at least six Blood tokens.
Activate
Phyrexian Altar by sacrificing another nontoken creature, adding .
Repeat step 3 until you have available.
Activate
Shilgengar by paying and sacrificing six Blood tokens, returning all creature cards from your graveyard to the battlefield without a finality counter on them due to
Solemnity.
Repeat.
If you control additional nontoken creatures, you may sacrifice them in step 1 to get infinite Blood tokens, and/or in step 3 to get infinite colored mana.
Results
Infinite artifact tokens.
Infinite Blood tokens.
Infinite colored mana.
Infinite death triggers.
Infinite draw triggers.
Infinite creature ETB.
Infinite creature LTB.
Infinite rummaging.
Infinite creature sacrifice triggers.
Infinite self-discard triggers.
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.