Unicorn is great for getting rid of monsters that can't be destroyed by battle or card effects and spell or trap cards that are causing trouble
Its hard to deal with the Slasher efficiently outside of exile-based removal, since it comes back with stun counters when it dies
I would pull the cards you just listed and take a close up picture (front and back) that way you can assess more specifically what makes sense
You can also use its VSTAR ability Star Abyss to get back 2 item cards from your discard pile
Despite remaining a notable deck in that format, Flash Hulks reign of terror is officially over
The entire set available to collect from these packs contains 292 cards comprising of 60 Commons (Normal or foil ver.), 38 Uncommons (Normal or foil ver.), 30 Rares, 23 Super Rares, 10 Special Rares and 3 Secret Rares Please note: Due to the nature of the product, multiples of one card may appear, or it may be difficult to assemble a full set