Some planeswalkers have a static ability that applies as long as theyre on the battlefield
This is really good when you exile two types on one card, like Solemn Simulacrum which is both an artifact and a creature
Tokens from cards like Pinnacle Emissary, Third Path Iconoclast, and Thousand Moons Smithy are essential for aggressive artifact decks
Hornet Queen - Another big Green top-end that spits out tons of murderous fliers
At the very least, we wont have to hear that theyll only print all ten fetches at once because its a cycle! canard anymore thanks to this
If your metagame is more powerful or combo-centric, however, youll probably want to stick with the kind of disruptive and interactive enchantments I hinted at earlier: Leyline Binding, Contamination, Ritual of Subdual, Rule of Law, Stony Silence, Painful Quandary, Suppression Field and so forth