As of Xyz Monsters, both of the newer Xyz Monster need that 1 copy of Heraldry Crest in the Extra Deck
This distribution method effectively capped the total number of packs opened, since collectors could not simply buy sealed cases of booster boxes and rip through them the way they could with mainline expansions
Whether youre filtering good spells into your hand, trying to find your next land drop, setting up a reanimation spell, enabling madness or just generating a token body at instant speed, Moria Scavenger can do all that for zero mana
Sure, youll play it if youre light on removal or need to kill a specific creature, but card disadvantage
And while Aboshan, Cephalid Emperor is an explicit way of using your octopus creatures to tap your opponents creatures, I dont find it as strong as some of the batched sea creature support
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras or Equipment attached to it, or any non-copy effects that have changed its types, color, power and toughness, and so on