Ideas For Reworking Annie:

For starters, Annie already has a much too simple kit. She really only uses 3 abilities out of 4 because her Molten Shield is only used for charging her passive. I feel as though this is one of the biggest things that desperately needs changed about Annie. Her damage with three abilities is more than most other champions with all 4, and the only method of beating her the majority of the time is to out range her. While I wouldn't say Annie is an overloaded champion her kit is actually extremely boring and could use some reworking.
- New Passive Idea -- "Tibber's Rage": -- Upon taking a set amount of damage Annie's bear Tibbers erupts at the location of the last champion or neutral monster to attack Annie knocking all surrounding enemies into the air for a brief period of time. (300 second cool down)

- Q (Active) -- "Disintegrate" [Single Target Skill-shot]: -- Annie shoots a powerful fireball in a target direction dealing damage and knocking the target backwards if it is an enemy champion. If Disintegrate deals a killing blow it increases Annie's "Burning" passive damage, double the amount if against an enemy champion.

- W (Active) -- "Incinerate" [No changes]: -- Annie releases a cone of fire in the target direction, dealing magic damage to all enemies in the area.

- E (Passive) -- "Burning": -- Annie passively reflects a percent of damage taken back at enemy attackers as Magic Damage. This amount is increased by dealing killing blows with Disintegrate.
E (Active) -- "Surprise!":
Annie's next spell cast will stun any targets hit for a period of time.

- R (Passive) -- "Loyal Tibbers": -- While Summoned "Tibber's Rage" cannot trigger. Tibbers applies double Annie's current "Burning" passive when struck by enemies or neutral targets. Tibbers is surrounded in flames and deals Magic Damage to all nearby enemies.
R (Active) -- "Summon Tibbers" [No changes]:
FIRST CAST: Annie summons Tibbers to the target location in a burst of flame, dealing magic damage to all enemies in the area. He then remains on the field as a controllable minion for up to 45 seconds.
SECOND CAST: While Tibbers is active, Summon: Tibbers can be used to move him to the target location.

These are some ideas for how I believe Annie could be reworked into a more unique and interesting champion.