AST card dont have effect on AST?

[LycorisSelunis]

In one of the recent articles it was mentioned that AST effects are targeted unless used with Royal Road... I thought I remembered something about how it acts with a monster or no target but I can't seem to find that again so I'm not sure if it's possible for an effect to apply only to the caster.

Only 2 become aoe when Royal Roaded. Two others gain increased potency, and the last 2 become increased duration. SO the majority of AST card buffs are always single target. If you try and cast it on an invalid target you will cast it on yourself. I got this from a twitch stream but the VOD has been removed

[Risvertasashi]

Only 2 become aoe when Royal Roaded. Two others gain increased potency, and the last 2 become increased duration. SO the majority of AST card buffs are always single target. If you try and cast it on an invalid target you will cast it on yourself. I got this from a twitch stream but the VOD has been removed

Ok, I thought I remembered that but when I couldn't find it again...

Anyways, thanks for confirming.