yugioh dark side of dimensions deck Aigami - THE POC MOD-Cubic ^^ based decks of their favorite heroes (or villains!) are here in this 57 Yugi Dark Side of Dimensions

These are typically very old cards because age tends to correlate with scarcity, especially with the Reserved List hanging around

In fact, Stairs of Mail can also flip Master of Ham face-down to save it from being destroyed by Instant Fusion

If this card is sent to the GY as Synchro Material for "Red Dragon Archfiend" or a Synchro Monster that mentions it: You can target 1 Level 4 or lower Fiend monster in your GY

Since youre going to be winning using poison counters, rather than reducing anyones life total to zero, Invigorate has no downside in this deck and is a great inclusion

That kind of changed with Modern Horizons 3, however

In the end most decks ended up eschewing Infiltrator for another identically costed card that was indisputably more powerful and important, since having two creatures in that slot would have been highly awkward for many draws