If you have neither of those, you can either decide to just destroy a card your opponent controls or you can destroy your own Scrap Wyvern and use it to equip to Borreload Savage Dragon to provide yourself two negations, additionally, if you decide to play a generic Rank 4 XYZ monster in the Extra Deck, you can use this line to get you into those fairly easily if Scrap Raptor is your only combo piece
When Vector did, Thousand fused Vector to it, rendering him immobile as the two needed to stay in the palace in order to put the power to work by building more devices
Side opening allows for easy insertion and retrieval
It has been a dominant force in the meta since Tearlament created a tier-zero environment
Dark Contract with the Witch X TRAP Continuous You can send 1 "D/D" or "Dark Contract" card from your hand to the Graveyard, then target 1 card on the field
The Extra Deck doesn't need to be too specific, although Red-Eyes Flare Metal Dragon, Black Rose Dragon, and Stardust Spark Dragon are all good calls