pokémon card arceus VSTAR 123/172 Brilliant Stars shuffle your deck I officially own one of

The Support Tutors/Card Quality/Dig Vampiric Tutor 10 Combo decks love a tutor

Its also mana hungry on account of all the equipment floating around, though there are some built-in safeguards to circumvent equip costs

For this reason, Underworld Breach is one of the most difficult decks to properly pilot across any format as it requires its player to understand what their opponents are trying to do and how to stop them

However, if there are easy repeatable methods of gaining life (even Ajanis Mantra, given that there will presumably be more lifegain/drain payoffs), then Epicure of Blood could be a surprisingly decent win condition in a grindy deck, or a way to get in those last few points of damage