Whats the right deck, you ask
Well anyways, ummm, yeah, come hang out & have fun
High Tide This card is the backbone of mono-blue combo decks, easily one of the best blue cards MTG ever put out there that can massively increase mana output in a single turn
While skipping one-drops is doable, especially in slower decks, not being able to play three-drops as well means that playing Gyruda, Doom of Depths as your companion essentially means that you're guaranteeing you'll cast a maximum of four mana worth of spells (two two-drops) across the first three turns of the game, which is certainly too slow for older formats like Modern and Pioneer, and likely too slow for Standard as well
Necropotence Although Ive not played with the card much myself, Ive probably witnessed far more than one-thousand life get funneled into Necropotence across all the games Ive played
Attempts to Recreate the Magic of the Lotus Lotus Vale Their first attempt came in 1997 with Lotus Vale from Weatherlight