I was looking for ways to break Magda, Brazen Outlaw, and Maskwood Nexus makes this much easier. All you need is a way to tap/untap a creature repeatedly.
The 'best' card for this is Tidewater Minion since it can immediately tap/untap itself. Most other tappers specify 'other', so you'll need two of them in play:
The mask makes the tapper a dwarf, so Magda will produce a treasure token. With a single Tidewater Minion you have infinite treasure (mana), otherwise you need any two of the untappers above. The Mask also makes all creatures in your deck a Dragon, so you can effectively play any artifact or creature from your deck.
I imagine a deck using this combo will be UG, splashing Red for Magda. You would of course run 4 Emrakuls to win the game.
The original combo (before Mask was revealed) was UR; using Freed from the Real + Paradise Mantle on Magda to generate the infinite treasures.
T1 Mothdust Changeling
T2 Magda, Brazen Outlaw, tap both to Mothdust ability, get two treasures.
T3 Tap Magda & Mothdust to make two more treasures. 7 Mana on turn 3 sounds pretty nice.
T1 Mothdust Changeling
T2 Magda, Brazen Outlaw, tap both to Mothdust ability, get two treasures.
T3 Tap Magda & Mothdust to make two more treasures. 7 Mana on turn 3 sounds pretty nice.
Forgot to play any dwarf or changling to search your deck for a dragon. That's pretty fast and brutal.
Faithless Brewing podcast mentioned that Mothdust Changeling is probably the best Magda card in modern. I have to agree. They tested a bunch of ideas like Aura of Dominion and changeling. I'll dump some of their ideas here:
Magda + Clock of Omens + artifact dwarf (e.g. Universal Automaton, Metallic Mimic, Saheeli Rai, Adaptive Automaton, Bloodline Pretender) gives infinite tapped treasures to fetch all artifacts and dragons from the deck. How it works: tap Clock + artifact dwarf to untap the artifact dwarf, Magda creates a treasure. Now tap the treasure + artifact dwarf to untap the artifact dwarf. Repeat. Sac infinite tokens to Magda and fetch your wincons.
The Omenkeel and Smuggler's Copter are great tap outlets that also apply pressure while smoothing out your lands and draws. I find running both are great because Omenkeel's ability applies to all vehicles, not just itself. They also use Omenkeel to pitch to Force of Negation back when Tibalt's Trickery was a thing.
They run only Changelings, so they fetch Reaper King followed by all artifact changelings to clear the board
In their testing they found Rimrock Knight to be pretty good at trading since most decks don't expect instant speed pump spells. Hard to say if you want 4x but 2-3x feels good
Magda does a pretty good job at being aggro with her +1/+0 ability so building the deck to be aggro seems like a good strategy. It's not uncommon to just kill on turn 4 with creatures. Depala, Pilot Exemplar as a lord and dwarf / vehicle refueler is pretty strong
They like Springleaf Drum but I find it clunky in all but the most explosive hands
A couple of ideas I'm brewing with that might give inspiration:
The 'best' card for this is Tidewater Minion since it can immediately tap/untap itself. Most other tappers specify 'other', so you'll need two of them in play:
The mask makes the tapper a dwarf, so Magda will produce a treasure token. With a single Tidewater Minion you have infinite treasure (mana), otherwise you need any two of the untappers above. The Mask also makes all creatures in your deck a Dragon, so you can effectively play any artifact or creature from your deck.
I imagine a deck using this combo will be UG, splashing Red for Magda. You would of course run 4 Emrakuls to win the game.
The original combo (before Mask was revealed) was UR; using Freed from the Real + Paradise Mantle on Magda to generate the infinite treasures.
Parallel Lives/Planar Bridge/Panharmonicon can both do good work in such a deck as well.
T1 Mothdust Changeling
T2 Magda, Brazen Outlaw, tap both to Mothdust ability, get two treasures.
T3 Tap Magda & Mothdust to make two more treasures. 7 Mana on turn 3 sounds pretty nice.
Forgot to play any dwarf or changling to search your deck for a dragon. That's pretty fast and brutal.
I made a mock modern deck.
Check out the deck: https://tappedout.net/mtg-decks/modern-magda-combo/
A couple of ideas I'm brewing with that might give inspiration: