This is a great suggestion. I'd been thinking of it as two "Islands" with an occasional side-benefit and a big draw back if Blood Moon hits the board, but they're also two "Islands" with with a big upside if Choke hits the board.
You can also, when in a pinch:
- Tap Oboro for U
- Bounce it with Mutavault/Cavern
- Play Oboro
- Tap for another U
- Profit
You can also, when in a pinch:
- Tap Oboro for U
- Bounce it with Mutavault/Cavern
- Play Oboro
- Tap for another U
- Profit
The list feels quite greedy, but I'll give it a try.
4 Silvergill Adept
4 Lord of Atlantis
4 Master of the Pearl Trident
2 Phantasmal Image
2 Merrow Reejery
2 Master of Waves
3 Negate
4 Spreading Seas
2 Echoing Truth
3 Treasure Cruise
3 Chalice of the void
4 Mutavault
4 Cavern of Souls
4 Watery Grave
3 Polluted Delta