When Jinx, Demolitionist is played with Sun Disc activated and Flame Chompers is discarded as part of Jinx's triggered ability, in what order do the abilities resolve and which units get readied?

Question

Accepted Answer

Ruling: Sun Disc is a passive effect, not a triggered ability, so Jinx enters the battlefield already ready. Flame Chompers' triggered ability goes on the chain after Jinx's "When You Play Me" trigger fully resolves, meaning Flame Chompers is played after Jinx is already on the battlefield and readied.

Sequence:
- Jinx is paid for and placed on the chain finalizing
- Jinx enters the battlefield ready (due to Sun Disc's passive effect)
- Jinx's "When You Play Me" trigger goes on the chain
- Jinx's trigger resolves, discarding 2 cards including Flame Chompers
- After Jinx's trigger finishes resolving, Flame Chompers' triggered ability goes on the chain
- Flame Chompers can be played by paying Red

Nuances:
- Passive effects like Sun Disc don't interact with the chain - they are instantly on/off
- Even if Sun Disc were a triggered ability, it would target Jinx (the unit being played), not Flame Chompers
- Triggers from paying costs go on the chain after the item being paid for finishes resolving