GX, they may remember the iconic Yu-Gi-Oh
While there are still debates on how many of the gruesome murders of that era were personally committed by Jack the Ripper, his victims usually had their throats severed by two cuts and their abdomen ripped open, exposing their intestines
The variance in ability between the colours to deal with creatures is negligible when compared to the variance across the colours in their capacity to combat spell casting
I included three counters that counter target spell and bounce something at the same time quite ably - Lost in the Mist, Cryptic Command, and Very Cryptic Command
Also note that's only usable at sorcery speed
Well, lets start with cards that are already obvious Modern staples, the powerful spells that will elicit a whoa from across the table and are likely to be useful in the format for years to come, regardless of shifts in the metagame