Wanted to start a thread here as I think this deck has enough to be decent after a few iterations.
Underworld Breach: 1R
Each nonland card in your graveyard has escape. Escape cost is equal to the card's mana cost plus exile 3 other cards from your graveyard. At the beginning of the end step, sacrifice Underworld Breach.
https://i.imgur.com/40NFgOhl.jpg
// 60 Maindeck
// 8 Artifact
4 Lion's Eye Diamond
4 Lotus Petal
// 4 Enchantment
4 Underworld Breach
// 19 Instant
3 Brain Freeze
4 Brainstorm
4 Force of Will
4 Daze
2 Snap
2 Cunning Wish
// 17 Land
2 Volcanic Island
4 Prismatic Vista
4 Scalding Tarn
1 Mountain
3 Island
3 Ancient Tomb
// 12 Sorcery
4 Ponder
4 Preordain
4 Echo of Eons
to give an example of how this would work:
The deck can durdle until it finds this new Breach card. Once it does you just need to resolve a Brain Freeze to mill yourself most of your deck. Once you've done it a few times you can brain freeze them. If they have some way to engage with you, you can use cunning wish to find another win condition.
Because the deck is already running 4 LED in a blue shell, I also added in Echo of Eons. For slower matchups you can still just cantrip a few times and possibly kill them with brain freeze anyway.