Heartfire Hero 
Creature — Mouse Soldier1/1
Oracle text (EN)
Creature — Mouse Soldier
Valiant — Whenever this creature becomes the target of a spell or ability you control for the first time each turn, put a +1/+1 counter on it. When this creature dies, it deals damage equal to its power to each opponent.
Printing details
- Set
- BLB · 138
- Rarity
- Uncommon
- Language
- EN
- Artist
- Jakub Kasper
- Released
- 2024-08-02
- Prices
- €0.36 · $0.28
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 31, 2026 | €0.37 | €0.11 |
| October 29, 2026 | €0.36 | €0.11 |
| October 28, 2026 | €0.44 | €0.11 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.37 30-day avg €0.47 | low €0.20 trend €0.72 30-day avg €0.68 |
| CardTrader (EN) | NM from €0.11 with Zero from €0.32 | NM from €0.47 with Zero from €0.47 |
| CardTrader (any language) | NM from €0.11 | NM from €0.47 |
Cardmarket updated Oct 31, 2026 · CardTrader updated Oct 31, 2026
Buy and look up
Legality
- standard Banned
- pioneer Banned
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Banned
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Legal
- timeless Legal
- tlr Legal
Rulings
-
Use Heartfire Hero's power as it last existed on the battlefield to determine how much damage it deals due to its last ability.
-
If a spell or ability you control has one or more of its targets changed to a creature you control with a valiant ability, that ability will trigger if that creature hasn't yet been the target of a spell or ability you control this turn.
-
If you create a copy of a spell on the stack and target a creature you control with a valiant ability, that ability will trigger as long as the creature hasn't yet been the target of a spell or ability you control this turn.
-
Valiant abilities will resolve before the spell or ability that caused them to trigger.