({20} magic symbol) minus ({1} magic symbol) for each creature and artifact you control each turn available available.
Steps
Activate
Avatar Kuruk by paying ({20} magic symbol) minus ({1} magic symbol) for each creature and/or artifact you can tap while activating it, causing you to take an extra turn after this one.
Activate
Fortune's saddle ability by tapping
Avatar Kuruk, causing
Fortune to become saddled until end of turn.
Declare
Fortune as an attacker. At the end of combat,
Fortune triggers, blinking it and
Avatar Kuruk and causing
Avatar Kuruk to return to the battlefield as
The Legend of Kuruk. Choose to have it enter with three lore counters due to its read-ahead ability given to it by
Barbara Wright.
The Legend of Kuruk's third chapter ability and
Fortune trigger.
Resolve the Legend of Kuruk trigger, causing you to exile it and return it to the battlefield as