Logic Knot, Negate, Spell Snare, and Dispel all cost two or less mana to have a disruption shield against a plethora of Modern staples
Endless Cockroaches has it's own trigger, which might let you mill out your deck if you can loop it
Here's our ranking of every starter deck from worst to best
Grabbing all the dragons out of your deck is often just a straight win in plenty of different ways, and your opponents will need to do something special to prevent you from winning this way
You won't be able to tap it again for convoke
Jace, the Mind Sculptor Jace, the Mind Sculptor, while powerful for its card denial and bounce effect, still takes over a game through card advantage if it goes unchecked