If one of your opponents has no blockers, you can easily kill them with this infinite loop
While in theory this can cause you to lose the game (as you saw in my match against Merfolk), the truth is it can almost always be played around, unless you run into the very rare situation where you have only the second Part the Waterveil left in hand and nothing to buy another turn, whether real or virtual
Illustrated by Tiffany Turrill Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Legendary Creature - Human Knight Anim Pakal, Thousandth Moon Whenever you attack with one or more non-Gnome creatures, put a +1/+1 counter on Anim Pakal, then create X 1/1 colorless Gnome artifact creature tokens that are tapped and attacking, where X is the number of +1/+1 counters on Anim Pakal
However, it's still smart to sell or trade away the cards you don't want quickly (or plan on holding onto them for a couple of years) to beat the influx of supply that will be coming in over the next couple of months as people open the set