Nothing can top it in the alternate win con category
It's both an Equipment and Planeswalker, with some powerful Loyalty abilites to boot
Valuable Art Cards Yes, art cards , those throwaways that one person at your LGS collects, the ones that are randomly inserted into Play boosters in place of those advertisement cards that tell you how to play a format that literally no one's ever played before
Flip It went rather dark after this piece of news
It makes a Blood token when it enters, which gives you card filtering, and you can sacrifice the Harvester later to give a creature -X/-X, where X is tied to how many Blood tokens you have
Playability Playability refers to how useful the card is within its respective format (Standard, Modern, etc.) or even how successful a card is in competitive play