+Scald (9)
Whenever a player taps an Island for mana, Scald deals 1 damage to that player.
, , Sacrifice Scalding Cauldron: It deals 3 damage to target creature.
: Scalding Devil deals 1 damage to target player or planeswalker.
Whenever Scalding Salamander attacks, you may have it deal 1 damage to each creature without flying defending player controls.
, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.
At the beginning of your upkeep, if you have three or fewer cards in hand, Scalding Tongs deals 1 damage to target opponent or planeswalker.
Whenever an opponent casts a spell with mana value 3 or less, Scalding Viper deals 1 damage to that player.
Flying
, Sacrifice Scaldkin: It deals 2 damage to any target.
Return target nonland permanent to its owner's hand. (Then exile this card. You may cast the creature later from exile.)
Gatherer works better in the Companion app!
, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.