If you do, you draw two cards and mill a card
While it is worth noting that Commanders increased deck size and singleton nature does a considerable amount to rein High Tide in when compared to its potential (and ability to play 4 copies) in Legacy, this is not a card to underestimate, especially as more nonbasic lands with the Island subtype make their way into print
Instead of +3/+0, the creature is getting +1/+1, but both equipment offer the same lifelink and trample
Each chapter triggers as usual, but instead of disappearing at the end, it stays on the battlefield as a creature
Because the tokens enter tapped, the deck naturally leans toward grindy midrange play, but the sheer volume of creatures it produces quickly overwhelms even prepared opponents
Stay safe, and keep thrifty