Cheapest priced copy (New Capenna Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Syrix, Carrier of the Flame 
Legendary Creature — Phoenix · 3/3 · Rare · New Capenna Commander · #180
Flying, haste
At the beginning of each end step, if a creature card left your graveyard this turn, target Phoenix you control deals damage equal to its power to any target.
Whenever another Phoenix you control dies, you may cast this card from your graveyard.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| New Capenna Commander | 80 | Rare | $0.49 | — |
| New Capenna Commander | 180 | Rare | $0.69 | — |
| New Capenna Commander Promos | 80p | Rare | — | $10.99 |
3 rulings from Wizards of the Coast
- 29 April 2022The damage dealt by the target Phoenix as Syrix's first triggered ability resolves is equal to its own power, not the power of the creature card that left the graveyard this turn.
- 29 April 2022You must pay all costs for Syrix when you cast it using its last ability and you must cast it as the ability resolves. You may not wait and cast it later in the turn (unless of course the ability triggers and resolves again).
- 29 April 2022If Syrix dies at the same time as another Phoenix, its last ability won't trigger. It must be in the graveyard already at the time that the other Phoenix dies.