Black Widow, Daring Operative Though costly, Black Widow, Daring Operative has excellent scaling with its saboteur trigger
And if you are looking for some good deals, Magic Madhouse has a few older Starter Decks at the even more interesting price of 15
Youll also get to buff it up with its own ability

higher rarities will start to mix and match effects): Artifact destruction Artifact or enchantment destruction (Naturalize) "Bounce" (Returning nonland permanents to owner's hand) Card drawing Card filtering Creature destruction Creature lockdown (Pacifism and Dehydration) Creature regrowing (Raise Dead) Creature unblockability Counterspell Damage prevention (Fog) Direct damage Discard Draining creatures and/or players Enchantment destruction Fighting "Flickering" (exile and return a creature to the battlefield) Flier destruction Forced blocking Forced sacrifice "Impulsive draw" (exile a card or cards, can cast until end of turn) Land fetching Life gain Looting/rummaging (drawing and discarding, and vice versa) "Milling" (putting cards from top of library into graveyard) "Panic" (some number of creatures can't block) Power/toughness pumping (Giant Growth) Tapping creatures (including "freezing" them, where they don't untap) Temporary stealing (Threaten) Token making Uncommon Complexity Uncommon gets to raise the bar a little on comprehension complexity and a bit more on board complexity

There are many different types, from Equipment like swords and shields that you can outfit your Creatures with, to MTG Vehicles that can become Creatures when they are crewed
All 10 fetch lands Magic the Gathering Proxy