Skateboard Urza's Saga decks such as Izzet Affinity, Izzet Metalcraft, and Emry Station have traditionally included a single fetchable Lavaspur Boots to grant haste to a freshly created Construct token
What was supposed to be a readily available set that a player could grab 2 packs of, mix together, and play against a friend who had done the same became an incredibly scarce product targeted by scalpers
Demonic Hordes The best way to use Demonic Hordes is if you have untap shenanigans
This pairs very nicely with Paradox Engine and I think this is one of the best ways to spend $1 right now
add 1 "True King" or True Draco" monster from your Deck to your hand, also, this turn, all Wyrm monsters become EARTH, WATER, FIRE, and WIND-Attribute while in the hand, field, or GY (even if this card leaves the field)
But of course in reality the chances of you actually pulling off a full-combo is very rare so make sure to conserve your materials and even if you have all the cards you need for the it, I'd suggest you just hold them off and wait for a better opportunity where you know for sure that your opponent doesn't have a negate for it since all fusion decks have a big weakness in card advantage so keeping your materials to go all out is better in my opinion