pokemon card mewtwo 10 102 10/102 Shadowless Holo Rare Base Set Near Mint/Exc Pokémon TCG Mewtwo 10/102 Base

While the 6/6 Demon is useful on the Ritual Chamber side, the main attraction is Unholy Annex

Plus, when the only other cool cards are the Greavard SIR and the Riolu SIR, that doesnt help either

This is a great stand alone card that works very well in and against most things

Putting creatures into play can certainly help the cause of defending your Planeswalkers, and the mana production can potentially ramp into more expensive and powerful Planeswalkers

Also, instead of exiling the creature as Molten Echoes does, Jaxis, the Troublemakers effect sacrifices it during the end step, letting you activate sacrifice payoffs directly

Put it all together and you get NIV-MIZZET