{1}, {T}: This creature deals 1 damage to each opponent.
Whenever you cast a noncreature spell, untap this creature.
An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
In a Two-Headed Giant game, Blisterspit Gremlin's first ability causes the opposing team to lose 2 life.
Players can cast spells and activate abilities after the triggered ability resolves but before the spell that caused it to trigger does.