Activate Kaya's third loyalty ability by removing seven loyalty counters from it, causing you to get an emblem.
Cast Karn's Temporal Sundering by paying ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) , causing you to take an extra turn after this one.
Move to your next turn.
At the beginning of your upkeep, Kaya's emblem triggers, causing you to cast Karn's Temporal Sundering from your graveyard without paying its mana cost.
Resolve Karn's Temporal Sundering, causing you to take an extra turn after this one.