Orim's Thunder — ruling 1

To determine a spell's total cost, start with the mana cost (or an alternative cost if another card's effect allows you to pay one instead), add any cost increases (such as kicker), then apply any cost reductions. The spell's mana value remains unchanged, no matter what the total cost to cast it was.

Orim's Thunder — ruling 2

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.

Orim's Thunder — ruling 3

If a card or token enters as a copy of a permanent, the new permanent isn't kicked, even if the original was.

Orim's Thunder — ruling 4

If a spell's kicker cost was paid, the spell is "kicked."

Orim's Thunder — ruling 5

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

Orim's Thunder — ruling 6

If you put a permanent with a kicker ability onto the battlefield without casting it, you can't kick it.

Orim's Thunder — ruling 7

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.)

Orim's Thunder — ruling 8

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

Orim's Thunder : règles, fonctionnement et interactions (MTG)

Orim's Thunder is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Kicker (You may pay an additional as you cast this spell.) Destroy target artifact or enchantment. If this spell was kicked, it deals damage equal to that permanent's mana value to target creature.

How it works : Orim's Thunder

Original English text — Wizards of the Coast / Scryfall

#1November 8, 2024· Wizards of the Coast
To determine a spell's total cost, start with the mana cost (or an alternative cost if another card's effect allows you to pay one instead), add any cost increases (such as kicker), then apply any cost reductions. The spell's mana value remains unchanged, no matter what the total cost to cast it was.
No other card is named in this ruling.
#2November 8, 2024· Wizards of the Coast
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.
No other card is named in this ruling.
#3November 8, 2024· Wizards of the Coast
If a card or token enters as a copy of a permanent, the new permanent isn't kicked, even if the original was.
No other card is named in this ruling.
#4November 8, 2024· Wizards of the Coast
If a spell's kicker cost was paid, the spell is "kicked."
No other card is named in this ruling.
#5November 8, 2024· Wizards of the Coast
The kicker ability doesn't let you pay a kicker cost more than once.
No other card is named in this ruling.
#6November 8, 2024· Wizards of the Coast
If you put a permanent with a kicker ability onto the battlefield without casting it, you can't kick it.
No other card is named in this ruling.
#7December 8, 2022· Wizards of the Coast
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.)
No other card is named in this ruling.
#8December 8, 2022· Wizards of the Coast
If Orim's Thunder is kicked, it's the source of damage dealt to the target creature, not the artifact or enchantment.
No other card is named in this ruling.