New Game Mode Concept

What would you think of a game mode where:

• Your champion starts off with only their normal passive, no other abilities.
• You get 3 tokens, which you use to buy a First Ability (Q), Second Ability (W), and Third Ability (E)
• These 3 abilities can be from any champion in league, so you could be playing Karthus with a Rampant Growth (Zyra Q), Valkyrie (Corki W), and Cutthroat (Talon E).
• At level 6, 11, and 16, you get a gold token to buy an Ultimate from any champion.
• Abilities which rely on other champion's passives will be banned if you are not playing the right champion (Such as, not being able to use Orianna abilities without her passive; the ball)
• Maybe bring back the old items from that game mode with the tokens to use in place of buying abilities. Such as the item that let you mirror allies' appearances, or the item that added stacks to enemies before expunging it for damage.