The universal dilemma of the Infiltrator was that few decks that played it wanted to tap out to get him there, but sticking him on the board was so devastating that most opponents would consider themselves fortunate to spend that window of opportunity making him go away as trying to race him with a traditional three- or four-drop was pure folly and playing your own blocker, including your own Shadowmage or something a little bulkier risked a removal spell that would lead into a downward spiral of card disadvantage
Emet-Selch, Unsundered does make for a good Commander, its true, but it also slots really nicely into Dimir and Sultai graveyard focused builds
Creature - Human Rogue Color tag templates(None) combo
Graded Population Report: Trevenant V #168 Visualize the distrbution of grades in the chart
Arixmethes's effect causing it to be a land overwrites any earlier effects that gave it additional types
Then we have a load of Auras that can turn lands into Swamps, including this one drop Presence that turns the enchanted land into a Swamp and was in the first set