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Usually, food tokens don't contribute to the strategy you are playing as much as the other two token types, however, since Waterbending can use any artifact, food tokens become much more useful
Curiously, this release date clashes with The Hobbits spoiler season, so it appears this set may not get a normal spoiler season either
You probably want to add a heap of effects that look for your creatures entering, a helping of effects that can double up your triggers, and to top it all off you can add a dash of the dash mechanic
The card makes great use of tapped Treasure tokens and can return Kain (or Gary) to the battlefield by sacrificing only two artifacts, meaning you could suit Kain up, sacrifice him to Technomancers ETB, and still come out ahead