japanese one piece card game 2nd Anniversary Set you can build a two Rules for the use of

If only there was no True-Name Nemesis, I could see this actually being a possibility in Legacy as a one- or two-of high end for Temur Delver in some metagames

However, compared to cards with blackened borders there is way less incentive to try any shenanigans here

Other variants of Vexilus Praetor dont help things, either

Critics will point out

This commander has huge political implications because youll choose which opponent decides what you do with the ability trigger

A shared planar deck must contain at least 40 cards (or 10 cards for each player, whichever number is smaller) and not more than 2 phenomenon cards per player