Rudeus still affected by yomo debuff

[ember gorge]

I thought his passive makes him immune to all attacks but he's still getting debuff. Is yomo's effect not considered as an attack and is actually intended?

[silk timber]

🗿

Dodge all attack

Is some shit like Statue attack in Double Dungeon map

ED

Is a debuff

[chilly violet]

not a bug

yomos energy drain is not an attack

!!a intended