japanese art mtg cards Metal Gear Artist Yoji Shinkawa Creates for Magic: The Gathering Card Illustrated by Riem. Japanese Alternate-Art Planeswalkers | MAGIC:

I can think of my own Mono-Red Diaochan, Artful Beauty and Fumiko the Lowblood as the only ones I run that wouldn't improve with this added to their deck

Another play pattern is to draw with the impending ability, and once this guy wakes up, you can protect it with a counterspell

However, effects that stop a creature from untapping "during your untap step" or "during its controller's untap step" won't stop that creature from untapping during another player's untap step, and as such, Prop Room's ability will cause that creature to untap

Over time, more and more powerful cards also require specifically colorless mana instead of or in addition to colored mana, especially Eldrazi like Ulalek, Fused Atrocity

(It's a deck I made here - CasualNation #57 - The Equinaut Primer | Article by Abe Sargent (coolstuffinc.com)