Hurloon Battle Hymn
Instant
Kicker 
(You may pay an additional as you cast this spell.)
Hurloon Battle Hymn deals 4 damage to target creature or planeswalker. If this spell was kicked, you gain 4 life.
The magical echoes of the Hurloon mountain range greatly increase the potency of spells based on song or speech.
Dominik Mayer
Dominaria United (DMU)
• #131Rulings
If a spell's kicker cost was paid, the spell is "kicked."
(wotc • 2024-11-08)
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.
(wotc • 2024-11-08)
If you put a permanent with a kicker ability onto the battlefield without casting it, you can't kick it.
(wotc • 2024-11-08)
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.
(wotc • 2024-11-08)
The kicker ability doesn't let you pay a kicker cost more than once.
(wotc • 2024-11-08)
If a card or token enters as a copy of a permanent, the new permanent isn't kicked, even if the original was.
(wotc • 2024-11-08)
If the target creature or planeswalker is an illegal target as Hurloon Battle Hymn tries to resolve, it won't do anything, even if it was kicked.
(wotc • 2022-09-09)
Rulings
If a spell's kicker cost was paid, the spell is "kicked."
(wotc • 2024-11-08)
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.
(wotc • 2024-11-08)
If you put a permanent with a kicker ability onto the battlefield without casting it, you can't kick it.
(wotc • 2024-11-08)
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.
(wotc • 2024-11-08)
The kicker ability doesn't let you pay a kicker cost more than once.
(wotc • 2024-11-08)
If a card or token enters as a copy of a permanent, the new permanent isn't kicked, even if the original was.
(wotc • 2024-11-08)
If the target creature or planeswalker is an illegal target as Hurloon Battle Hymn tries to resolve, it won't do anything, even if it was kicked.
(wotc • 2022-09-09)