A list of the changes on the Teamfight Tactics Public Beta Environment.

Elise

• -5 Armor
• 3-star base HP is unchanged. 
• She has 25 more mana, so it's harder for her to transform.

Demons

• Mana burn is now 25/55/85.  Compare to live at 30/50/70.

Items and Gold

• XP drop boxes are gone.   Hurrah!
• Items drop more often.  Unclear how much "more often"

Locket

• Works in a 5 hex line rather than forcing the champion to be adjacent.
• Gives 300 HP shield.  Stackable.

Guardian Angel

• Gives 1000 HP on revival up from 500. 

Gunslingers

• Only attack 3 random enemies rather than all enemies in range. 

Aatrox

• Ultimate now deals 150 more damage at all ranks. 

Fiora

• Buffed to 1.0 attack speed.

Rek'Sai

• Burrow damage increased to 100 from 50

Garen

• No longer switches targets during spin if original target dies.