However I did draw a hard line around cards which primarily serve to mill your entire deck into your graveyard in one go: Hermit Druid, Cephalid Illusionist, Balustrade Spy, and so on
Note that you can only challenge characters that your opponent currently has exerted
(For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter.) If you exile a card with a mana value of 0, it will gain suspend, but no time counters will be placed on it
27 Mishra, Eminent One The Meek Stone Unleashed The other side of The Brothers' War is Mishra, Eminent One, a cruel and powerful artificer who will go to any lengths to secure power for himself
When this halfling attacks it becomes a guessing game for your opponent