Is killing Overzealous Fan a cost that cannot be prevented by Cannon Barrage?
Is killing Overzealous Fan the cost for activating its ability, or could I prevent it by reacting with Cannon Barrage?

When I defend, you may kill me to move an attacking unit to its base.
Artist: Six More Vodka
Card Set: Spiritforged
Is killing Overzealous Fan the cost for activating its ability, or could I prevent it by reacting with Cannon Barrage?
My opponent used Ride the Wind to move a unit to my battlefield ready. I used Overzealous Fan to kill itself and move their attacking unit back to base. Does their unit return to base ready because of Ride the Wind, or exhausted because of Overzealous Fan?
If I use Overzealous Fan's ability to move a Windrider, does that move count toward Windrider's third-move trigger?
Player A has Overzealous Fan and another unit defending a battlefield. Player B sends in a unit, A sacrifices Overzealous Fan to bounce B's unit, B responds with an Ambush unit, and A responds with Kha'Zix. Since Overzealous Fan's effect resolves last on this chain, does Kha'Zix still get +2 Might when he enters, or does the showdown continue with Kha'Zix at 4 Might because B now has two units present?
I have Overzealous Fan at a battlefield with a hidden Tideturner and another unit on my board. I want to kill Overzealous Fan to push an enemy back to base, but also use Tideturner to bring a new unit in and draw 1 for winning combat with Glorious Executioner. How should I order this?