Spiders with status effects drop 1 extra xp.

Zombies and skeletons both drop 5 xp + 1-3 per item equipped, baby zombies drop 12 + 1-3 per item but spiders (and cave spiders) drop 5 whether they have status effects or not. I think spiders that spawn with a status effect should give 6xp instead of 5xp. This rule could be applied to cave spiders too or it could just apply to normal spiders instead. I think it would apply better to just normal spiders as this wouldn't make spider spawners more effective than other spawners and the extra xp drop would be more random, just like a spider spawning with a status effect in the first place.