Since you have access to blue, you get all sorts of control elements between counterspells, extra turn effects, and bonus card draw
So don't be afraid to mulligan, either
If this card is sent from the field to the GY: You can add 1 "Spiritual Earth Art" card or 1 "Possessed" Spell/Trap from your Deck to your hand
"Cyber Repair Plant" and "Cyber Emergency" can search "Cyber Dragon" and/or LIGHT Machine monsters in general (including "Galaxy Soldier" for "Cyber Repair Plant"), "Cyber Revsystem" is a searchable GY reborn Spell, "Cyberload Fusion" is a searchable Quick-Play Fusion Spell that can recycle banished monsters, and "Cybernetic Overflow" is a Trap Card that can destroy multiple opposing cards without targeting
Again, a Side Deck is completely optional and is only really seen in high-level play
After Seto and Mokuba leave, Serenity comes and says she wants to see the Kaibaman Show