Tactics 100 Live

http://gamebrew.com/game/tactics-100-live/play

An easy to learn hard to master round based RPG. You can use a preset army or create your own. Each unit costs points based on its type and updates and your army can have up to a total of 100 points, hence the game's name.
When in battle, you have to move your guys tactically and use weapons and spells to destroy the enemy's army.

And best of all: It's not only singleplayer! You can battle your friends in a multiplayer match as well, or simply challenge someone on the server.

Definitely one of my all time favourite flash games!