mtg bloomburrow commander deck lists Jump-Start List Bloomburrow's Commander Decks, Ranked -

Her presence on the battlefield can transform an unruly mob into a disciplined army

I think that the most powerful mill pieces are the ones that require minimal extra work from the mill player, and Mindcrank is a prime example

for example, your cool counterspell should be blue, your hasty creature is likely red, a card that cares about power is green, and so on

Two, it untaps four creatures to allow you to use them a second time to help cast a spell on an opponent's turn

The upside of a heavily discounted extra turn doesnt quite make up for the potentially wasted card, but this does good work in decks that manipulate coin flips or can copy it several times over to increase the odds of getting at least one turn out of it

Examining the card on EDHREC it looks like Indoraptor is mostly played as an MTG commander, rather than part of the 99