The good thing here is that I've managed to get the point across that this card is balanced.
As for the argument that this card should be in other:
Nik, in terms of other cards you've only pointed out two.
-All Shards are Other, and that's understandable because Shards are an archetype, sort of like a classification of the the non-elemental magic in this world.
-Other weapons symbolize the generic weapons in RPGs that you could find about anywhere. The mark affinities are just a bonus.
-Luceferin makes things glow. Clearly Light.
-Animate Weapon allows weapons to fly, but it also technically makes them a "creature" which could be considered an
enchantment or a
spell in that respect. However since the spell makes a weapon a
flying weapon
powered by the wind, it is air. (That being said, as earth it could resphape the composition of the weapon and life could literally bring the weapon to life. Zanz instead focuses on the air concept.)
-Immolation, RoL,Holy Flash and Spark are self-explanitory.
-Sundial is mainly other costing for accesibility and lack of a better nerf.
-Nova could be Other (widespread use) or Gravity/Aether (Astral Phonomena) - however Entropy has a tendency to deal with all elements as well.
Elemental cards that actually cost Other:
Holy Flash
Animate Weapon
Luceferin
Elemental cards that imply Other's "theme" (versatility)
RoL
Spark
Immolation
Sundial
Nova
So why should Decaying Dragon be Death? (Already stated by Nepycros and Bloodshadow, but repetition indicates emphasis IMHO)
-It's a zombie.
-It has a
death effect that has some very clear synergy with cards within it's own element.
-It does not thematically fit within any of the other elements.
And honestly, being Death is a slight nerf to the card. It can be killed by Holy Light.
Your current argument Nik states that this card should just be Other because it costs Other. In that case I suggest looking at the above list I provided and countering the ones currently in an element, especially Nova, which has high potential to be in Gravity or Other according to your logic.