Cards on top of your library that appear in play due to Yet Another Aether Vortex do not come into play nor trigger any other effect that happens when you play a creature (such as As CARDNAME comes into play and CARDNAME comes into play with)
Since Koma triggers on every player's upkeep, you'll make four Koma's Coils per turn cycle in a four-player game, and being uncounterable and indestructible on a whim almost always makes it the scariest creature in play
For that, you have Mirrorjade The Iceblade Dragon , whose Fusion materials are Fallen of Albaz plus one Fusion/Synchro/Xyz/Link monster
Emissary of the Afterlife plays well in the strategy, attacking into battle traps without worry, tributing to higher level fiends like Ha Des, and searching out Dark King of the Abyss for card advantage
Ojer Axonil, Deepest Might / Temple of Power One of the transforming gods from The Lost Caverns of Ixalan , Ojer Axonil, Deepest Might scales all your burn damage up to at least Ojers power
Perfection Existed