modal cards mtg The Power of Options - in Commander Modal cards rules question :

Arranging an Inventors' Fair entry next to an explanation of its use makes perfect sense, particularly for a device such as the Needle where it may not be immediately obvious

For instance, Naban plus Archaeomancer, Ghostly Flicker, and High Tide can generate insane amounts of Blue mana and even rack up your storm count to cast giant finishers or just mill your opponents out with Brain Freeze

It will end games

Commanders like Anje Falkenrath are very good at enabling madness, while red and black have no shortage of good madness cards

When when you crew it, which takes four power, exactly equal to the power of those Cat tokens, you can start copying tokens of any type