Sideboarding in mordern can be very tricky, especially when you think that you only have a few dead cards and need more cards to take out! So i'm gonna show you how to sideboard with a control deck in modern.
Control mirror (even)
IT'S THE FREAKING MIRROR, so of course it's even. Counterspells and card-draw is good.
In:
2x Ashiok, Nightmare Weaver, 1x Vendilion Clique, 1x Unmoored Ego, 1x Anguished Unmaking, 2x Dovin's Veto and 1x Force of Negation.
Out:
3x Path to Exile, 3x Supreme Verdict and 2x Kaya's Guile.
humans (great)
Thalia, Guardian of Thraben, Meddling Mage and sideboard Xathrid Necromancer can be annoying, but otherwise they just can't do much the almighty Supreme Verdict.
In:
1x Engineered Explosives, 1x Celestial Purge and 1x Kaya's Guile.
Out:
3x Force of Negation.
Jund (great)
Jund is an excellent matchups, and is exactly what Esper is made for. Their long game is not even close to as good as ours, and we have plenty of good answers for their threads. All the removal one for ones with their creatures, and the sweepers can sometimes be a two for one, or even a 3 for one. All draw spells makes sure we newer runs out gas, in addition to making discard less effective. Catch all answers like Engineered Explosives and Celestial Purge is key here.
In:
1x Engineered Explosives, 1x Celestial Purge and 1x Anguished Unmaking.
Out:
3x Force of Negation.
Tron (terrible)
No Field of Ruins, Drown in the Lochs and Supreme Verdicts are dead. Also no good clock. So yeah, just concede. But in case you still wanna try, here's what to do.
In:
1x Anguished Unmaking, 2x Unmoored Ego, 2x Disdainful Stroke, 1x Disenchant, 2x Dovin's Veto and 1x Vendilion Clique.
out:
3x Supreme Verdict, 2x Kaya's Guile, 3x Drown in the Loch and 1x Cling to Dust.
Storm (bad)
storm is another bad matchup, since we have no way to pressure them, so they get plenty of time to set up and play around our countermagic. But we do have some nice sideboard options, as well as the one Cling to Dust. It's close to even, but you probably still lose about 60% of your games.
In:
2x Dovin's Veto, 1x Engineered Explosives, 1x Celestial Purge, 2x Unmoored Ego, 1x Ashiok, Nightmare Weaver, 1x Vendilion Clique and 2x Teferi, Time Raveler.
Out:
2x Supreme Verdict, 1x Path to Exile, 3x Cryptic Command, 1x Secure the Wastes, 1x Sphinx's Revelation and 2x Kaya's Guile.
Scapeshift/titanshift (bad)
Without Field of Ruin, there's not a lot you can do game 1. Maybe a giant Sphinx's Revelation can gain you enough life, but that's very unlikely. Second game, you Unmoored Ego is amazing, since it allows you to name Valakut, the Molten Pinnacle. Just be aware of the fact they might have Field of the Dead as a backup plan, so casting Unmoored Ego again can be quite important.
In:
2x Unmoored Ego, 2x Disdainful Stroke, 2x Dovin's Veto, 1x Ashiok, Nightmare Weaver and 1x Vendilion Clique .
Out:
2x Kaya's Guile, 1x Spell Snare, 3x Supreme Verdict and 2x Drown in the Loch.
red blitz (bad)
Similar to burn, so lifegain and cheap removal is good.
In:
1x Kaya's Guile, 1x Celestial Purge, 2x Dovin's Veto and 1x Engineered Explosives.
Out:
1x Deprive, 2x Cryptic Command, 1x Spell Snare and 1x Esper Charm.
Ponza (bad)
Another close one, that you most of the time are going to struggle against. Moon, BBE and planeswalkers are annoying cards.
In:
1x Aether Gust, 1x Anguished Unmaking, 1x Celestial Purge and 1x Engineered Explosives.
Out:
1x Cling to Dust, 1x Spell Snare and 2x Kaya's Guile.