The Crossover Game

Thanks pernicious!
I did consider your suggestion of killing the creature when it attacks, but ultimately I went for the more familiar template.

Your next challenge is to make a card for an existing Universes Beyond property (such as Stranger Things, Godzilla, or even the newly announced Assassin’s Creed) or a property intended for young children (Think Sesame Street or Dora the Explorer)

A short explanation would be helpful as I may not be familiar with the property you choose.

Good luck!

A card to kill Emrakul, but not kill Marit Lage, I like it very much.

From the TV show "Something Special".

…And here we are:

kefke:
We usually see land destruction in red these days, but it’s totally in pie for green as well. The drawback for hitting a basic is interesting, but I think it would read better as an upside for hitting a nonbasic to be in line with other effects. For me, it seems you’re only going to destroy a basic if it’ll take your opponent entirely off a color, and even then you’re replacing the land, so that seems weak. Definitely an interesting use for land tokens though.

Phyrexian Ymonrah:
That’s a whole lot of damage for a whole lot of mana. To me, this basically boils down to 15 damage for 14 mana thanks to both its Atomic Breath plus haste and attacking for 15 with Gargantuan, plus a whole bunch of extra stuff if it sticks around. Ultimately, it is just an expensive burn spell stapled to an expensive huge creature. Very fitting for the King of Monsters, but even Godzilla, Primeval Champion only costs 9.

Flo00:
Based on your explanation, the flavor here is spot-on. Playing this makes your opponents think twice about tapping their artifacts, but it still lets them if they want to, and the summoning sickness gives everyone a turn’s worth of notice before this starts exiling things. I’m not sure if this has a home anywhere, being a 5 mana 3/3 with an ability that is only relevant sometimes, but the design is interesting.

pistonsmcgraw:
For the sake of this review, I’m going to assume you have plenty of space in your autograph book to sign Sol Ring, and will be able to untap an artifact every turn. This is a powerful effect, but I don’t think it’s broken, since it’s limited to once a turn. I don’t know this character very well, but the card seems more blue than anything else.

I’ll give the win here to pistonsmcgraw for the commander which feels like it has some neat synergies without being overpowered.

Runner-up goes to Flo00 for the interesting and flavorful card that unfortunately doesn’t seem to have a place.