If I use Jinx Demolitionist and discard Flame Chompers, can I use Sun Disk to ready it?

Ruling: No, you cannot use Sun Disk to ready Flame Chompers when discarded by Jinx Demolitionist.

Nuances:

• Sun Disk is not reaction speed, so there is no window between Jinx's ability and Chompers' ability where you could activate it
• If you used Sun Disk before Jinx, Chompers wouldn't have Legion yet
• Even if Chompers had Legion before being discarded, Jinx would see it, not Chompers