Dawn of Dragalia: Elysium Clash - Dragalia Lost

Elysium's raid battle (omega level 3 solo) from Dragalia Lost's 2.5 anniversary raid event, Dawn of Dragalia. Cleared with adventurers featured/related to that event.
I wish the Dragalia (skin) was available when this rerun happened. That being said why wasn't this event in the compendium in the first place though?
Music:
"Because of You" by セツコ (SETSUKO) - Dragalia lost
#dragalialost