Ignitros, the Thunderflame

Crackling Bolt - {1}{u}{r}, {t}: Ignitros, the Thunderflame deals X damage to any target,
where X is the total number of mountains
and islands you control.
Inferno Trail - Whenever Ignitros, the
Thunderflame deals damage to a player, you may sacrifice a creature. If you do, Ignitros, the Thunderflame deals damage equal to the
sacrificed creature's converted mana
cost to any target.