Annie is arguably the strongest Tier 1 Unit currently creating havoc in Set 10. You can effectively open fort in Stage 2 and only collect Annie/Lillia/Gnar. Roll for Annie*3 and give her Shojin/Nashor's Tooth and receive a free Shojin from the Superfan trait.
After finding Annie*3 you can push towards Level 8/9 and add 2 Emo, Ekko and more Spellweavers on the way. You are not required to play 4 Emo in this comp. 2 Emo is enough to reduce Annie's mana to 40, which means she only needs two attacks to cast her ability.
In late game you want to itemize Sona and select her Red Form, as it will provide you with a very strong late game carry to help you win the lobby.