Kilnmouth Dragon
Mana cost {5}{R}{R}. Power/toughness 5/5.
Amplify 3 (As this creature enters, put three +1/+1 counters on it for each Dragon card you reveal in your hand.)
Flying
{T}: This creature deals damage equal to the number of +1/+1 counters on it to any target.

Kilnmouth Dragon is a red card, legal in Premodern, shown in its old-frame Legions printing.
Price and printings: Cardmarket (€0.88) · TCGplayer ($1.01) · Scryfall
How often Kilnmouth Dragon is played
Kilnmouth Dragon is maindecked in 1 of 142 tournament decks in this archive (1%), averaging 4.0 copies.
Counting only the 72 decks that can cast red cards, 1 of them plays it (1%).
See how it compares on the Premodern staples list.
Tournament decks with Kilnmouth Dragon
- Dragon Reanimator: Top 8 at UC Showdown, Ultra Comix (4× mainboard)