Every string starts as mtglore.com/search/? with the filter slug beginning immediately after the question mark. Visit the linked examples to familiarize yourself with the structure. The order of filter slugs does not matter when used in combination.

Slug	Type	Examples
_pw	Planeswalker	_pw=ral zarek | _pw=arlinn kord,sorin markov (Arlinn Kord and Sorin Markov)
_npw	Non-Planeswalker	_npw=akiri | _npw=thalia,the gitrog (Thalia and The Gitrog)
_ps	Plane/Setting	_ps=innistrad
_a	Author	_a=jeff grubb
_m	Medium	_m=comic book | _m=video game | _m=web article
_s	Associated Set	_s=eoe (Edge of Eternities) | _s=blb,otj (Bloomburrow and Outlaws of Thunder Junction)
_t	Type	_t=story | _t=lore/worldbuilding | _t=game design
_f	Free	_f=1 (Free to read) | _f=0 (Requires purchase to access)
_o	Date Order	_o=date%2Basc (Oldest to newest) | _o=date%2Bdsc (Newest to oldest)
_arc	Arc	_arc=omenpath | _arc=the metronome arc
&	Combinations	?_npw=kellan&_t=story&_o=date%2Basc (Kellan stories from oldest to newest)