The copied artifact stays in play, even if the original goes to the graveyard, which means a player can use it to get some pretty powerful artifacts on their side and gain the upper hand against more seasoned players with stronger decks
C Common Supreme Rage X TRAP If you control "Supreme King Z-ARC": Destroy as many monsters you control as possible, except "Supreme King Z-ARC", and if you do, Special Summon up to 4 "Supreme King Dragon" monsters with different names from your hand, Deck, Extra Deck, and/or GY, ignoring their Summoning conditions
the IPs put out the products, different products then push different elements of the IPs
Its easy to buy yourself tons of cards and time that you otherwise would not have with The One Ring
your opponent cannot activate monster effects this turn