You can get some fast starts with mana rituals, you can get late-game mana power with Cabal Coffers, you have the best suite of tutors in the game, and you can get decent card draw if youre willing to sacrifice life, creatures, or both
And then at around #5 it turns into pure Spike
It also fits well into blue-based artifact decks as a way to draw cards cheaply and get a nice creature in play
Her six-ink Legendary-rarity card comes at a steep cost, but the price is worth it
A couple tidal wave plays, aside from the obvious size of each of our creatures, include some colossally overwhelming cards like Stormtide Leviathan to shut down ground swarming tokens, Ominous Seas to make 8/8 krakens at instant speed, and Serpent of Yawning Depths to kill one or two players the very turn you play itunblockable sea monsters end games very quickly