When Hornet Queen enters the battlefield, it, Cloudstone Curio, and Mana Echoes trigger.
Resolve the Cloudstone Curio trigger, returning nothing to your hand from the battlefield.
Resolve the Hornet Queen trigger, creating four 1/1 Insect creature tokens.
When the Insects enter the battlefield, Mana Echoes and Cloudstone Curio each trigger four times.
Resolve the first Cloudstone Curio trigger, returning Hornet Queen from the battlefield to your hand.
Resolve all remaining Cloudstone Curio triggers, returning nothing to your hand from the battlefield.
Resolve all Mana Echoes triggers, adding ({5} magic symbol) for each Insect you control.
Activate Gemstone Array's first ability three times by paying ({6} magic symbol) , putting three charge counters on it.
Activate Gemstone Array's second ability three times by removing three charge counters from it, adding ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .