Brass Infiniscope | Voltaic Construct | Trazyn the Infinite (and one other card)

Spell with in Mana Cost

Cards

Spell with ({X} magic symbol) in Mana Cost in hand.
All other permanents on the battlefield (
Trazyn the Infinite without summoning sickness).

There are legal targets for the spell with ({X} magic symbol) in its mana cost, if applicable.
You have enough mana to cast the spell with ({X} magic symbol) in its mana cost reduced by ({C} magic symbol) ({C} magic symbol) , accounting for ({X} magic symbol) to be 2 or greater if you wish to gain life.

Activate
Trazyn using
Brass Infiniscope's ability by tapping it, adding ({C} magic symbol) ({C} magic symbol) and creating a delayed triggered ability.
Activate
Voltaic Construct by paying ({2} magic symbol) , untapping
Trazyn.
Repeat steps 1 and 2 as desired.
Cast the spell with ({X} magic symbol) in its mana cost, with ({X} magic symbol) being at least 2 if you wish to gain life.
Each instance of
Trazyn's delayed triggered ability triggers, causing you to draw a card and gain half X life, rounded down, for each trigger.

You'll want to stop the combo before getting too many triggers such that you'll deck yourself and lose the game. To gain life, you must spend at least ({2} magic symbol) for X when casting the spell.

This combo has been estimated to be Exhibition (Bracket 1+).