Talking on his Blogatog blog, where he answers questions from the community, Rosewater says that he had received plenty of complaints about the cards, which replace all the text with the fictional Phyrexian language
Regardless, the pairing makes for a great aesthetic, with the smaller, more innocent Mew being dwarfed by the more powerful Mewtwo
I much prefer when bonus sheets have a dedicated slot, as then you know they are just in the draft environment
(Flip Effects are not activated.) C Common Adhesion Trap Hole X TRAP When your opponent Summons a monster(s): Halve that monster(s)'s original ATK
Theres no overarching strategy or theme that would use this best, but its still a super sweet card that many different casual Commander decks could put to use, and I hope to try it sometime after release
Once per turn, during its controller's Standby Phase, they pay 1000 LP or destroy this Token