Ol' Musky, the Infamous

+1: Speculate - Each human you control gets +0/+1 until end of turn and proliferates. Ol' Musky gains hexproof.
-3: Build - Search your library for a Battery or Factory card and put it onto the battlefield tapped. Shuffle.
-6: Start a Company - Gain 6 life. Draw six cards. You may play up to two Human cards without paying their mana cost. Proliferate twice.