My new deck:
deck-large:mardu-op-sideboard-halp-needed
Use Mizzium Skin, Armed / Dangerous andTeleportal to buff Nivix Cylcops into a 12/6 Hexproof, Double Strike and Unblockable GOD and simply attack for a one shot kill
This is an exclusively goldfish deck (a deck in which you sit around until you know you can win the game in 1 turn). You just want to control the board so you take the least amount of punishment possible before you can 1 shot them with your Cyclops
Here's the 4 turn kill:Turn 1: LandTurn 2: Land, Play Goblin ElectromancerTurn 3: Land, Play Nivix CylcopsTurn 4: Land, Play Mizzium Skin, Armed / Dangerous and
Teleportal
on Nivix CyclopsAttack once and win
Did I mention there's no rares in the Main deck?
How to PlayYou're going to want to stall until you get the 4 cards for your 1 shot kill comboThese 4 cards are Nivix Cyclops, Mizzium Skin, Armed / Dangerous and
Teleportal
Once you get them all out at the same time you basically winONLY DROP YOUR COMBO IF YOU KNOW YOU CAN COUNTER ANYTHING YOUR OPPONENT PLAYS TO RESPOND TO IT
Use your 1 mana/2mana control spells (which get cheaper with Goblin Electromancer) to remove any threats Guttersnipe gives you a plan B of winning and it's 2 damage on every instant/sorcery you cast is actually very strongBefore you do your 1 shot kill combo, try and save a Counterspell to counter any of your opponents removal spellsUse Divination to find the last few spells you need to finish your combo
SIDEBOARD:VS Aggro/Weenie Rush/Tokens:Take the 2 Izzet Staticasters and 2 ElectrickeriesThey shut down rush decks in their tracks!!!
VS MidrangeTake the 3 Rapid Hybridizations. You can chump block the 3/3 Frog Token with Nivix Cyclops
VS ControlTake the 2 Jace, Memory Adept, the 2 [[Counterfluxes], the 2 Dispels and the 2 AEtherlingControl will try to stall out even longer than you and try shut down vital parts of your combosJace, Memory Adept draws their attention away from Nivix Cyclops which is good for you and they will waste a lot of cards and effort trying to kill him. He also gets much stronger as the game progresses.Jace's ultimate can be used to draw 20 cards for yourself, and from those 20 cards you will most likely find the 4 key cards for your 1 shot kill combo and 1 counterspell and therefore win the gameAEtherling is a very powerful creature to cast late game and can win games by itself given enough time.Counterflux is your no-fail counterspellDispel to counter anything they use to try and stop Nivix from attacking on your turn
NOTE:If you want to build this deck definitely add the worksat least 1 copy of Jace, Memory Adept or an AEtherling at least 2 Counterfluxa full set of Steam Ventsalso Temple of Epiphanyto the main deck