is arceus a rare pokemon card Ultra Darkness Darkness Arceus - AR7 - Holo

Turn it face up any time for its mana cost if it's a creature card.) Other colorless creatures you control get +3/+2

You may put that card on the bottom.) : Add one mana of any color in your commander's color identity

There are only three cards in Modern with mana value 14 or higher - Calibrated Blast, Emrakul, the Aeons Torn and Blinkmoth Infusion - which means you pretty much have to play Blinkmoth Infusion if you want to play Calibrated Blast optimally

Then use two of the treasures to equip the Blade to the token Atsushi and repeat

If you happen to have a Kor Haven, it would fit nicely

It really depends of the Match Up, Marco is still overpowered but he doesnt like to go at the bottom of your deck