Cipher (House Dimir)

"In the cold corridors of the undercity, misinformation unfurls from Duskmantle like a spreading stain." 

In House Dimir, you've learned to maximize the efficiency of your magic because you never know how many opportunities you'll get. 

Whenever you cast a spell, the magic lingers around you, empowering your weapons. By the end of your next turn, if you make a melee attack and succeed, you can use your bonus action to recast the spell without consuming a spell slot and regardless of spell timing.