R.B. Pumpking

The basic idea of the strategy is to use a 7-card Pumpking engine to supplement the R.B. strategy. The final main deck count is 46 which is high but helps reduce the chance of you drawing Lambda blade/cannon.

The Pumpking cards help you reborn Spell Canceler which you access in you main R.B. combo through Scrap Recycler. You can also use the Pumpking cards to help you play through interruption or act as a disruption during your opponent's turn. Call of the Haunted is also pretty good in this deck because it lets you revive your R.B. pieces to act as further disruptions.

Camelia is the centerpoint of the deck and lets you bridge into R.B. from any 2 effect monsters. Pumpking also helps with this because it gives you 1 or 2 bodies depending on if you want to play without summoning machines from hand/graveyard or not. 

Give the deck a shot and let me know what you think!