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
The 10 Best Flicker cards in MTG Now, flicker (named for the Urzas Destiny card called Flicker) is an effect that makes a permanent temporarily exiled before returning it back to play
An accidental encounter in Alexandria brings Zidane, Vivi, and Garnet together, and they set out on a journey that leads them to discover the secrets of their past, the crystal, and a place to call home
Her presence on the battlefield can transform an unruly mob into a disciplined army
Two, it untaps four creatures to allow you to use them a second time to help cast a spell on an opponent's turn
I already covered Goblin King