The other ability also lets you control when you are done with exiling the creature you did exile
Notably, both the original and this Halloween reprint are offered as holofoil cards
The best tip you can follow is to playtest, fail, and then modify the deck again, removing any card that didn't help you in the match or replacing it with a different option you want to try.
Nonetheless, pet cards are the ones you find popping up in lists even if you dont have a great reason for them to be there, and with that in mind, the Khans card I have absolutely played with the most even though I often dont need it is: I think part of what makes Stubborn Refusal so strong is the number and times of ways it kind of just works
Hes heading to the stands for the Unbroken version of himself (Sarkhan the Slightly Less Mad)
He can understand most technological devices with a single touch, and quickly create artifacts or automatons without the need for components or materials