There's a reason why this card still sees play in a format as high-powered as Modern, flickering powerful creatures like Grief and Solitude
Gwen Stacy / Ghost-Spider Im not all that high on Gwen Stacy as a support piece, but it can make an interesting commander given the number of cast-from-exile payoffs we have
However, Rancor and Thragtusk have tilted me more towards mono-Forests
Since you have the infrastructure to hit already, why not add in two more combat damage triggers that also boost the power by two and thus the Commander Damage clock is sped up as well and giving two key protections from targeted removal like Beast Within and burn like sweeping Blasphemous Act
Players can cast spells and activate abilities (such as Kindlespark Duo's own activated ability) after the triggered ability resolves but before the spell that caused it to trigger does
Since collecting cards, trading them and building decks is a really big part of a CCG experience, its absence in MTG Arena is sorely missed