cannot be fetched by uncage the managerie - I was using it as a single creature and uncage fizzled (was casted but didn’t fetch any creature). Fun fact: gather the pack can fetch him.
selecting poly On cast of growing rites does not fetch him,
I saw a similar bug with the Merfolk Forerunner failing to fetch a selected merfolk (I believe one of the green ones from Rivals of Ixalan). It’s probably the same bug.
Another Polyraptor interaction. Bounce effects (Harbinger of the Tides is the one used against me) destroyed Polyraptor, rather than returning it to my hand (I had room). It’s like the game doesn’t recognize it’s a card.
Now if I’m wondering if the game is only set up to recognize X number of creature cards in its database, and with Rivals, we’ve exceeded that limit.
@GregDreher, that idea doesn’t seem likely in this case. RIX pushed the total creature count to 1007 from 936. If there was such a limit, it would have to be 1005 (since two creatures display this bug) which would be a really weird number to be the limit. 1000 would make sense, but that would mean five more creatures affected by the bug that people haven’t posted about here, which is why I say it’s unlikely.
When I cast Polyraptor with Anointed Procession on the battlefield, it reinforced. This reinforces (heh) my observations that the game is treating Polyraptor as a token.