If you choose not to cast the card, it remains in exile
Instead, this is a better addition for Sapphire/Steel
Evasive can win games if your opponents don't have an answer for it, which gives this deck a strong advantage in many situations
Among modern MTG black cards, few combine removal and long-term inevitability this cleanly
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
Alesha, Feather, Yuriko, and Najeela are powerful commanders for Aggro decks in Magic: The Gathering Commander format