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Ok, I will show my hand! There is an ETHREMON (should be ETHEREMON) and an ETHERION (should be ETHERIONS). No biggie, just wanted to make sure they'd be accepted, and not there to be tricky!

Edit: Let me retract the ethremon ... my bad :S

well spotted! my bad on the etherionS!

Thanks @justdik!

I found 21 (including etherion).

My kitties live at 0x263b604509d6a825719859ee458b2d91fb7d330d

PS: to avoid other steemians just copying my answer, I’ll edit this comment with my true answer before the contest closes. Or will I?!