Discard outlets are plentiful in Modern, and six mana isnt hard to come by, especially with Eldrazi Temple and Ugins Labyrinth in the mix
As such, I have added a few pieces to help protect my commander, and a few of the Morph cards have capacity for removal or destruction, which is something Im very happy about, because I wanted to pack in as many as possible
Taking your attackers to the skies with a card like Archetype of Imagination can be pretty effective
But that's the problem with Breya: no other Artifact commander can really compare to her, power-wise
Not many kids knew how to actually play the game back then, so the goal was always to "catch them all." I still have my binder collection from childhood, which includes the complete Base, Jungle and Fossil sets in Unlimited
Wall of Corpses Wall of Corpses provides an excellent deterrent