Assertion: echo | /r/HasProperty | nerfed in first place
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text: This was the reason that Reckless Experimenter was nerfed to be unable to reduce Deathrattle minions below 1 (as SN1P-SN4P also has Deathrattle), but SN1P-SN4P Warlock managed to do so anyway by using Mechwarper and Summoning Portal to play as many SN1P-SN4Ps as possible in a single turn, an exploit so prominent that it was the reason that Echo was nerfed in the first place.