Once something resolves, Blue has limited options
If the opponent choose to Special Summon a Purrely monster from deck, then the discarded card would be banished, so Shaddoll Beast , Broww, Huntsman of Dark World or Rainbow Bridge of Salvation would not be able to activate their effects
Ultimately, a lot of explorations were either too mundane to get that sense of adventure or a full minigame that was too much to keep track of alongside the Magic game (or fit on the table)
By the way, similar cards already existed with Truce and Temporary Truce, which got a lot of multiplayer play during their heyday - although there you could trade cards drawn for life gain if you were about to die and needed to come back
Shinobi is the best card to punish players choosing not to block small or evasive creatures, especially if they havent seen any ninjutsu cards that game