Cast Bonus Round by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) , causing each player to copy each instant or sorcery spell they cast this turn.
Resolve the copy of Flicker, blinking Quintorius Kand.
Resolve the original Flicker, blinking Meldweb Curator.
When Meldweb Curator enters the battlefield, it 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 Meldweb Curator.
Quintorius Kand and Bonus Round trigger.
Resolve the Quintorius Kand trigger, dealing 2 damage to each opponent and causing you to gain 2 life.
Resolve the Bonus Round trigger, copying Flicker targeting Quintorius Kand.