There’s no way you can get past Michelle’s ten blockers with the creatures that you have, so you’ll have to find other options. Looking over the remaining cards in your library, you do have something that can deal two damage to Michelle: Destructive Revelry. The problem is that Michelle doesn’t have any artifacts or enchantments in play… so you’ll just have to give her one.

1. Play the Temple of Abandon. This lets you scry 1; choose to put the Witches’ Eye on the bottom of your library.
2. Tap seven forests to add (four used as generic mana) to your mana pool. Leave the eighth forest untapped — we’ll get to that later.
3. Spend to cast Kruphix’s Insight. Reveal Mountain, Karametra’s Favor, Artisan’s Sorrow, Nylea’s Presence, Mountain, and Revel of the Fallen God. Put Karametra’s Favor and Nylea’s Presence into your hand, and the rest into your graveyard.
4. Spend to cast Nylea’s Presence on your lone untapped forest. This lets you draw a card; draw the Destructive Revelry.
5. Since the forest with Nylea’s Presence now counts as every basic land type, tap it to add to your mana pool.
6. Spend to cast Spite of Mogis on Michelle’s Returned Reveler. This deals 3 damage due to the instants and sorceries in your graveyard (Kruphix’s Insight, Artisan’s Sorrow, Revel of the Fallen God). Additionally, this lets you scry 1; choose to put the mountain on the bottom of your library.
7. The Returned Reveler dies, forcing each player to put the top three cards of their library into their graveyard. You put mountain, mountain and Dragon Mantle into your graveyard.
8. Spend to cast Karametra’s Favor on your Swordwise Centaur. This lets you draw a card; draw the Akroan Horse.
9. Because your devotion to green is now five (Swordwise Centaur, Karametra’s Acolyte, Nylea’s Presence, Karametra’s Favor), you may now tap Karametra’s Acolyte to add (four used as generic mana) to your mana pool.
10. Tap the Swordwise Centaur to add to your mana pool (due to Karametra’s Favor).
11. Spend to cast Akroan Horse. When Akroan Horse enters the battlefield, have Michelle gain control of it.
12. Spend to cast Destructive Revelry on the Akroan Horse, dealing two damage to Michelle and defeating her.