Chain Lightning with Graven Guardian of Set

[Junior Goblin]

Earlier in the turn Ahmotep cast Chain Lightning, then encountered Graven Guardian of Set. Would she have to reroll the chain lightning resul, due to the Guardian's power, or not.

[Hawkmoon269]

My gut says no, you wouldn't reroll. That is largely because doing so would require you to remember exactly which dice you rolled (which can be way more than just what is printed on Chain Lightning itself) and requiring you to remember that long after you rolled them with many other rolls in between is the kind of thing the game avoids.

[elcoderdude]

Seconding. I think you could use the original Chain Lightning result on the "reroll".