Cheapest priced copy (Final Fantasy Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Krile Baldesion 
Legendary Creature — Dwarf Wizard · 2/1 · Rare · Final Fantasy Commander · #86
Lifelink
Trace Aether — Whenever you cast a noncreature spell, you may return target creature card with mana value equal to that spell's mana value from your graveyard to your hand. Do this only once each turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy Commander | 86 | Rare | $0.49 | $1.99 |
| Final Fantasy Commander | 176 | Rare | $0.69 | $4.99 |
3 rulings from Wizards of the Coast
- 6 June 2025Krile Baldesion's last ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack.
- 6 June 2025For spells on the stack with {X} in their mana costs, use the value chosen for X to determine the spell's mana value.
- 6 June 2025If a card in your graveyard has {X} in its mana cost, X is 0 for the purpose of determining its mana value.