Once a creature you control has become blocked by a single creature, giving it menace by turning it face down somehow won't cause it to become unblocked
Mass damage spells are pretty awkward in Limited, but this one's modal, so in theory you can find the right window for it
The existence of two types of boosters causes friction
The dash cost is also going to be of interest, especially as a finsher, and it should be noted that the commander's discount effect also applies to that casting cost, making it cost 4 as well, and that with 4 power that also triggers the enchantments that cares about that
In the middle, we can see a piece of Lore being created using magical ink
Being able to steal a players commander is often one of the most impactful plays in the format, and being able to do it for a measly two mana makes it clear that this card surely deserves its over-$200 price point on the secondary market