Trying to break Zada, Hedron Grinder and now, Mirrorwing Dragon. If you're still grasping at straws to see the difference between the two cards, I'll clarify.
Them: "I cast Path to Exile on your Zada, it's exiled"
You: "DAH!"
Them: "I cast Path to Exile on your Dragon, it's exiled."
You: "As is every creature you control, GG."
Them: "What? How?"
The Rules: "Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for EACH OTHER CREATURE HE OR SHE CONTROLS that the spell could target."
For the most part, you can run ANY color beyond red and get enjoyable results. I for one prefer the mana ramp that green with a splashing of white for protection. It also helps out the sideboard.
In playtesting I was swinging for over 200 damage by turn-4...WHAT??!
Best Instants in Every Color:
White: (Worst color for mainboard, one of the best for side)
Swift Justice
Emerge Unscathed
Shelter
Green: (You almost HAVE to run green. The buffs are too good)
Might of Old Krosa
Groundswell
Become Immense
Might of the Masses
Mutagenic Growth
Confront the Unknown
Appeal / Authority (Don't look at the other half. This is a mono green card.
Red: (Great buffs, plus some jank things with interesting potential)
Arcbond (Infinite damage combo that immediately ends the game in a draw...unless you have lifelink...)
Titan's Strength
Temur Battle Rage
Twinflame
Brute Force
Otherworldly Outburst
Black: (While the creatures don't get as big, black offers the scariest additions to any Zada deck)
Deadly Allure
(this card's insane!)
Rush of Vitality
Aphotic Wisps
Virulent Swipe
Tainted Strike
Grotesque Mutation
Touch of Moonglove
Blue: (It mainly offers unblockable, but there are a few ideas to explore.)
Distortion Strike
Cackling Counterpart
Cerulean Wisps
Shadow Rift
Slip Through Space
Multicolored: (Sigil Blessing is game ending. The others are kind of lackluster, however.)
Sigil Blessing
Leap of Flame
Rally the Righteous