Marketplaces like eBay are a great starting point since they have a massive volume of listings, which gives you a solid baseline for a card's current market value
Once per turn, during the End Phase, if this card is in the GY because this Synchro Summoned card was sent there from the field this turn: You can target 1 "Speedroid" monster in your GY, except "Hi-Speedroid Puzzle"
Otherwise, you create your own version by mixing polyurethan with mineral spirits using a 3:1 ratio
There's no surprise that there would be quite a few electric-type cards in this expansion that could spark up any deck
(Choose any number of permanents and/or players, then give each another counter of each kind already there.) , Sacrifice another creature: Proliferate
So having one black star means that its a standard Rare card