11 cards where the cards can be your commander and it’s legal in PreDH and the number of identity colors is 5

Child of Alara (Double Masters 2022 #192)
Cromat (Apocalypse #94)
Scion of the Ur-Dragon (Commander 2017 #192)
Horde of Notions (Modern Masters 2015 #178)
Progenitus (Modern Masters #182)
Atogatog (Odyssey #286)
Karona, False God (Scourge #138)
Sliver Overlord (Scourge #139)
Reaper King (Shadowmoor #260)
Sliver Queen (Tempest Remastered #211)
Sliver Legion (Time Spiral Remastered #261)

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