Support champion idea

I have no clue what this champion would be named, but it would be pretty interesting. This support would latch onto the ADC. It's passive would be whenever the ADC dies, it would become invisible for 3 seconds and could explode by pressing Q, W, E, or R. It's Q would be a small heal, that would increase by AP. It's W would be a mana boost that also scales with AP. It's E would be a speed boost that scaled with boot tier of the support and the ADC. And it's ultimate. It's ultimate would give a huge amount of armor, attack speed, and damage for 5 seconds. I think this would be cool and I have been imagining it for the longest time. Thank for reading this and tell me what changes could be made to the design. Upvote to get this noticed.