Master Duel and terrorize your opponent like Pegasus did in the anime
Cyber-Stein had low stats, but was a potentially rewarding gamble
The player can then add that monster to their hand, making it easier to set the field for a victory
I guess mill support like Foolish Burial and the Ishizu EARTH/Fairies can get Slifer in the GY easily, but then it's a matter of drawing this and then waiting for a direct attack, and even then, nowadays most modern decks have ways to deal with 3000+ ATK beaters without any sort of protection, although admittedly I do have seen duels where decks do not have outs to such cards or have already spent their resources.
Not only did the gameplay drag on during my opponents turn, but my actions were pretty delayed on my end as well
SIMPLE TO USE & TEST - Engineered to allow you to freely slip your card in and out of the sleeve with ease