[Game Mode Concept] Simulation Rift
Step 1: Choose your faceless champion: Humanoid, Humanoid Child, Yordle, Big Beast (tank build), Sentry (Xerath)
Step 2: Choose your primary and optional secondary classes. Your choice makes your faceless champion glow a certain color. E.g. blue for support, yellow for adc, yellow-green for adc/sup, blue-green for sup/adc.
Step 3: Choose your abilities and passive, mix and matching from any of the champion kits from your classes. Some abilities are useless without the existing of another (such as Karma's ult needed at least one other of her active abilities to be useful). If the animation of a particular ability uses a certain weapon, a digital version would appear briefly for your faceless champion.
Step 4: Use sliders for your base stats, based on your class choices.
Head into game! :)