Dolmen Gate is even better, as you can repeat keeping your attacking creatures alive no matter the blockers
Then rotate, view, and download
For example, defeating a Mega Charizard will award Mega Charizard Energy
What works, what doesnt work, and what does that say about playtest cards as a whole
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
The special treatment given to some of these reprints is astonishing