sideboard strategy:
splinter twin:
out:
2 Detention Sphere
1 Restore Balance
1 March of the Machines
1 Thassa
2 Idyllic Tutor
1 Nihilit
in:
2 Slaughter Games (Splinter Twin, Snapcaster Mage)
2 Krosan Grip
4 Ricochet Trap

Hatebears:
out:
(mind) 1 Idyllic Tutor
1 March of the Machines
(Thassa)
in:
2 Firespout
(mind 2 Wispmare)

Burn:
out:
2 Detention Sphere
1 March of the Machines
eventl 2 Idyllic Tutor
in:
2 Slaughter Games (Lightning Bolt, Lightning Helix, Skullcrack, Eidolon of Great Revel)
(mind) 1 Ricochet Trap
eventl 2 Firespout

Junk/Jund/The Rock:
out:
mind 1 Idyllic Tutor
1 March of the Machines
eventl Thassa
in:
2 Firespout
eventl 2 Slaughter Games (Tarmogoyf, Scavenging Ooze, Lightning Bolt)

Merfolk:
out:
2 Idyllic Tutor
1 March of the Machines
1 Thassa
(eventl 2 Detention Sphere)
in:
2 Firespout
(mind) 2 Ricochet Trap
2 Slaughter Games (Master of the Pearl Trident, Lord of Atlantis, Merrow Reejery)

Pod:
out:
1 Thassa
2 Idyllic Tutor
1 March of the Machines
in:
2 Firespout
2 Ingot Chewer

Bogle:
out:
in:
3 Wispmare

Mono Black Control:
out:
in:
eventl Wispmare
eventl Ingot Chewer

Affinity:
out:
1 Thassa
2 Idyllic Tutor
1 Detention Sphere
in:
2 Ingot Chewer
2 Krosan Grip

Storm:
out:
in:

Scapeshift:
out:
in: