Beetrooper Predaplant (Post CYAC)

Predaplant Engine is used to search Instant Fusion  or if you have that already on your hand, you can search Fusion Destiny instead (or Ready Fusion, just and idea). Also, Predaplant is a tasty food for Beargram, Shelled Emperor of the Forest Crown  <3

Lonefire Blossom is optional (it can make Beagram easier to summon later).
2 Predaplant Darlingtonia Cobra  is recommended so it's not awkward when you draw one.
Crossout Designator  is recommended (don't forget to add the targets as well).

And do you know that Cruel Saturn is a Dark monster, so you can summon him using Predaplant Bufolicula :)

The combo starts by normal summoning Scorpio (discard 1 Monster), SP Cobra to add Instant Fusion. Then, Make Cherubini, Ebon Angel of the Burning Abyss  to dump Beetrooper Scout Buggy. Active Instant Fusion to summon Beetrooper Cruel Saturn and add Beetrooper Assault Roller. Summon Roller by banishing Scout Buggy and that'll trigger Saturn to summon Scout Buggy.

Contact "C"  is relevant againts Kashtira, but you can always replace them with something else, Artifact Lancea  for example.