greninja pokemon card box 30th Celebration Collection and Pokémon Pokémon Shrouded Fable Greninja EX

It's pretty good as a 4-mana counter that can be free for the same cost as Force of Will, save for no loss of life and with a more limited target range

A big fear is that this will cause more non-games for people

This is a little too restrictive for some decks, but it really pulls its weight where it can

Phyrexian Arena gives you an extra card per turn on your upkeep in exchange for losing 1 life per trigger

*Designed for Ultimate Guard sleeves

It's a self-fueling token generator, but it also nabs any discarding you do through other means, making it a fun addition to cycling decks or decks that just do a lot of looting in a game