The Sellsword

+1: Create an equipment artifact named "Redrum" it gains "equip for 0, target equipped creature gains +1\+0 and deathtouch"
-3: Create a Poison pouch enchantment with "give to target player, at that target players endstep they lose 2 life"
-7: Steal three cards from the top of each players libraries, you may cast one spell without paying its mana cost, tuck the rest