Requires

Tyvar Kell must be on the battlefield. Cloudstone Curio must be on the battlefield. Doubling Season must be on the battlefield. Llanowar Elves must be on the battlefield. Elvish Mystic must be in hand. Tyvar and Mana needed:

Steps

1. Cast Tyvar by paying , which enters with six loyalty counters due to Doubling Season.
2. Activate Tyvar's third loyalty ability by removing six loyalty counters from it.
3. Tyvar dies as a state-based action due to having zero loyalty.
4. Resolve the Tyvar ability, causing you to get an emblem.
5. Cast Elvish Mystic by paying .
6. Tyvar's emblem triggers, causing the Elvish Mystic spell to gain haste, and you to draw two cards.
7. Elvish Mystic enters the battlefield, triggering Cloudstone Curio, returning Llanowar Elves from the battlefield to your hand.
8. Activate Elvish Mystic by tapping it, adding .
9. Cast Llanowar Elves by paying .
10. Tyvar's emblem triggers, causing the Llanowar Elves spell to gain haste, and you to draw two cards.
11. Llanowar Elves enters the battlefield, triggering Cloudstone Curio, returning Elvish Mystic from the battlefield to your hand.
12. Activate Llanowar Elves by tapping it, adding .
13. Repeat from step 5.

Results