Resolve the copy of Flicker, blinking Quintorius Kand.
Resolve the original Flicker, blinking Hag Hedge-Mage.
When Hag Hedge-Mage enters the battlefield, its second ability triggers, putting Flicker on top of your library from your graveyard.
Activate Quintorius Kand's second loyalty ability by removing three loyalty counters from it, causing you to exile Flicker from the top of your library and cast it without paying its mana cost, targeting Hag Hedge-Mage.
Quintorius Kand and Swarm Intelligence trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the Swarm Intelligence trigger, copying Flicker targeting Quintorius Kand.