"Mill" is a colloquial term that originates from the card Millstone, used here to mean "putting the top cards of a player's library into his or her graveyard." For example, you could say, "In the finals of the Pro Tour Qualifier, Herbert cast Tome Scour to mill away my final five cards, dashing my chances of playing on the Pro Tour." There are many players who will play with Tome Scour in their decks
Tournaments with 17 or more players should have a top cut of eight players, who should now all get a special promo card
What are our first impressions
Their early showings as Mistforms mostly dont hold up to todays meta, but theres always someone out there trying to conjure something from nothing
The reflexive triggered ability will trigger any time you lose control of that Equipment this turn, whether it's because the "until end of turn" duration ended or because someone else gained control of the Equipment with another effect
Both of these are fun, and theyre an interesting combination for sure