mtg card that changes all creature types Magic The Gathering - Artificial Evolution Changing Creature Types in MTG:

You'll never remove the last counter since it's phased out, so all creatures will remain phased out indefinitely

Tragic Slip

On top of that, all those 1/1 tokens you just cast gain haste

It may not be the worst mythic ever like people would've had you believe in this era, but the card was symbolic at the overall failure of a set Masters 25 turned out to be

Graded Population Report: Joshua, Phoenix's Dominant #229 Visualize the distrbution of grades in the chart

However Pairing one of Yurikos artifact-enablers Hope, Automaton, Gingerbrute with Covert Technician can create an efficient loop where each successive trigger can place the same creature into play