(Gold, artifact, and colorless aren't colors.) If Conqueror's Flail is attached to a creature you control and you activate its equip ability targeting another creature you control, there's no time in between activating that ability and the resolution of that ability during which it's not attached to a creature
Wish Wish is an absolutely ridiculous Rare Red Sorcery that costs only three mana to play, including one Red
Thousand-Year Elixir, Kiora, Behemoth Beckoner, and Patriar's Seal all let you do just that and should be used almost exclusively on Helga
Think Bequeathal , Keen Sense , and Rancor in mono green
But outside of combo which is a bit harder in casual EDH, Yawgmoth can draw a lot of cards
Nimble Larcenist is the first Obscura card to look at, and while it might seem unassuming, I think its a key piece for blink decks