track runner yugioh card "Token" (Yusei and Duel Runner) TK01-KR007 Korean Ver Rare Noah Lyles shows off 'Yu-Gi-Oh!'

You can tap it to play a snow permanent from your graveyard this turn, but, when you do, it enters the battlefield tapped

A magic ring

Yes, there's a difference.) You can target a creature with no abilities other than keywords with TL;DR, but when TL;DR resolves, it won't exile that creature

This basically turns Grimgrin into a very large kill spell that will probably beat whoever youre attacking down in a couple of turns

Other than that, it's performance is

In the case of a permanent spell, the ability to Discover will be a triggered or activated ability that explains when it happens, or what cost you need to pay to make it happen