Personally for me, this makes for somewhat uninteresting gameplay to watch, and the subgame of who gets to resolve W6 first is quite frankly a little boring
If our opponent counters, Thoughtseizes, or destroys combo pieces like Altar of Dementia or Thran Vigil, we can always use Lurrus of the Dream-Den to play them from our graveyard
Tutors In a 99-card singleton format, tutors are a powerful way to add consistency to your decks
What a time to be alive #10: Eureka While Eureka has never really enjoyed much tournament success, thats in large part due to only being printed in 1994 and never being legal during a time period in which creatures costing more than four were remotely good
Further Upgrades The first cards I'd pick up to further juice up the deck would be untapped mana-fixing lands: Watery Grave, Shipwreck Marsh, Underground River, Morphic Pool, Darkslick Shores, Polluted Delta, Sunken Ruins, Undercity Sewers, Urborg, Tomb of Yawgmoth and then maybe a couple more Island / Swamp fetches