This kind of grindy, variance-heavy self-mill plan isnt going to be as explosive or consistent as some other popular Commander decks, but I know there is a set of players out there who love to play a methodical and reactive style, and Winter lays out a really cool way to do that
There are a LOT of ways to protect our creatures from Clot Sliver to Crystalline Sliver, ways to go over blockers with Winged Sliver, and ways to do enough damage like Megantic Sliver
Successful blink decks have existed in Modern before, thanks largely to Soulherder
Meanders Guide, meanwhile, is a really solid reanimator option for Merfolk that is a pretty rare pickup
If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost