Lets say its Nissa, Resurgent Animist
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
Since all previous Universes Beyond releases were only legal in eternal formats, this worked as a decent compromise
Usually this is overkill for finding whitening but more important for tighter grading companies
Cloud, Midgar Mercenary Promo, 001 A very rare variant of the Cloud, Midgar Mercenary card, this particular Final Fantasy Promo was earned from tournaments at Magics Pro Tour organized play events
But being able to untap an artifact or creature for zero loyalty is potentially busted, proving Tezzeret is the master artificer of not just the multiverse, but even the Edge now, too