I activated my Vito's , Thorn of de Dusk Rose ability so that my creatures had lifelink. After combat as I gained 1 life, Vito's triggered ability activaved and dealt 1 damage to my opponent, but Chandra's Incinerator ability did not trigggered as my opponend had been damaged by a non-combat ability, then I could not deal 1 more damage to my opponent Trufllesnout with Chandra's Piromancer triggered ability.