It was used it MTGs early years to play 3- and 4-MV cards ahead of time, but now the main application is in storm engines to generate enough mana to play a card like Ad Nauseam or Dark Petition
Note that Summon: Leviathan is one of the sea creature payoffs that include merfolk, though not all sea creature payoffs do
Payoffs Rakdos has two great grindy rares that x players will surely be looking to take and splash (Rakdos, Patron of Chaos and Blood Spatter Analysis)
It also requires less work than counting individual lines of flavor text
That sentence sounds like pure Google-related nonsense, with as many key things stuffed into it as possible, but its a real thing that can happen in a standard match of Fortnite now, and the game is absolutely the better for it
The main strategy revolves around unleashing relentless, recursive threats that slowly grind down opponents while maintaining board control