Runaway Steam-Kin
Creature — Elemental
Whenever you cast a red spell, if this creature has fewer than three +1/+1 counters on it, put a +1/+1 counter on this creature.
Remove three +1/+1 counters from this creature: Add .
Jason Felix
Guilds of Ravnica Promos (PGRN)
• #115pRulings
Runaway Steam-Kin’s triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
(wotc • 2018-10-05)
If Runaway Steam-Kin has three or more +1/+1 counters on it after you’re done paying for a red spell, its ability doesn’t trigger at all. If it has three or more +1/+1 counters on it as its triggered ability resolves, it doesn’t get a +1/+1 counter.
(wotc • 2018-10-05)
Runaway Steam-Kin has to be on the battlefield for its ability to trigger. Casting it won’t trigger its own ability.
(wotc • 2018-10-05)
Rulings
Runaway Steam-Kin’s triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
(wotc • 2018-10-05)
If Runaway Steam-Kin has three or more +1/+1 counters on it after you’re done paying for a red spell, its ability doesn’t trigger at all. If it has three or more +1/+1 counters on it as its triggered ability resolves, it doesn’t get a +1/+1 counter.
(wotc • 2018-10-05)
Runaway Steam-Kin has to be on the battlefield for its ability to trigger. Casting it won’t trigger its own ability.
(wotc • 2018-10-05)