Once youve summoned both new Xyz rulers, you also have the option to overlay them together to Xyz Summon the ultimate Dragon Ruler: Disaster, Dragon Ruler of Paranormalities (YGOrg Translation)
Professors Research lets you draw two cards, capitalizing on the universal card game theory that suggests, the more cards you draw, the better your chances of victory
Decks interested in playing this card either have big creatures that will survive the damage sweeper, are spellslinger decks looking for cheap spells, or have ways to amplify the damage dealt, like a Ghyrson Starn, Kelermorph deck
In trading card form, all we have to work with is the artistic presentation, and the in-game stats and attacks printed on the card
For those of us who don't play Standard, we can sell it for a few tix
Discarding my hand can be an upside in that deck, and the other modes are card advantage