These cards are both collectible and playable, and since character Cast Members all learn the signatures of the character they play, there should be a uniformity here for collectors, no matter which park's characters might be signing
Getting them in unblockable will melt life totals, and if anyone is shields down, they might have to eat some double strike, too
Dont Move tacks an extra mana onto Wrath of God, but in exchange offers you an extra turn of protection along with the aforementioned asymmetrical nature of the card
However, if Duggan leaves and later returns to the battlefield, he's considered a new permanent (with a new set of abilities) and it can be activated again
Yes, you can absolutely activate a creatures ability before it dies, assuming that you can pay the costs