Orim's Thunder

The kicker ability doesn't let you pay a kicker cost more than once.

If you copy a kicked spell on the stack, the copy is also kicked. If the copied spell is a permanent spell, the token the copy of that spell becomes when it enters is also kicked.

If Orim's Thunder is kicked, it's the source of damage dealt to the target creature, not the artifact or enchantment.

If Orim's Thunder is kicked, but the artifact or enchantment is an illegal target as Orim's Thunder tries to resolve, Orim's Thunder won't be able to determine the artifact or enchantment's mana value. No damage will be dealt to the target creature, even if it remained a legal target. If only the creature has become an illegal target, the artifact or enchantment will still be destroyed. (If both targets become illegal, Orim's Thunder won't resolve at all.)