When using Annie it is best to keep track of her passive ability. It is much easier to use a combo if you can control which spell will stun the enemy. Her passive stuns the enemy every 4 spell hits. Keep this in mind or even use spells on purpose until the spell count is 3. Then when you go to attack a champion your first attack will stun them, allowing you to hit them head on with Tibbers. Another thing to keep in mind while feeding is the secondary ability of your fire ball "Q" attack. "Q" can be used to deal massive damage, and is best used during a taunt or a combo; However if you kill a target with this attack, your mana used for the attack is refreshed. Keep in mind that only the mana you used for initial attack is refreshed, not the cooldown. This is similar to Dr. Mundo's life using abilities. It is easy to feed on minions with this ability as well as with your "W". If anything Annie is just pure magic damage. So be careful, watch your map, and light players on fire. If you take anything away from this build it should be to keep in mind your passive abilities as well as your specific character's advantages.