@rwallace8665 Help me settle a disagreement: can a human warlock summon a Dao’s maul or a Storm Giant’s greatsword as their pact weapon? i'd say no, or at the very least the warlock couldn't effectively wield it.
— Mike Mearls (@mikemearls) October 8, 2014
@rwallace8665Can you settle an argument for me? Can a human warlock use a Dao’s maul or Storm Giant’s Greatsword as a pact weapon? I would say that they could use a maul or a greatsword, but there's no "storm giant greatsword" to choose from in the game.
— Rodney Thompson (@wotc_rodney) October 7, 2014
@rwallace8665 The feature specifically points you toward Chapter 5, indicating that the warlock chooses from the weapons normally available.
— Rodney Thompson (@wotc_rodney) October 7, 2014
@rwallace8665 Additionally, those are both intended for larger creatures (& are unwieldy for a normal PC) & have no stats of their own.
— Rodney Thompson (@wotc_rodney) October 7, 2014