SOI### Nerfs
Behold The Beyond - Each card gains 4 mana instead of 6.
Decimator of the Provinces - Hmm. Many different ways to go with this one. I would make it 6/6 instead of 8/8, give a 3/3 buff to creatures, and take out the Haste buff. It’s just too overpowered in its current form.
Deploy The Gatewatch - Make it so that it can only fetch White creatures.
Emrakul - Another tough one. Make it 10/10, and reduce card cost addition to 10. Still a tough card to deal with.
Geier Reach Bandit - Make it cost 17 instead of 12.
Gisela - Make it cost 16 instead of 12.
Olivia - 5/5, reduce cost to 16, make her buff only affect Vampires.
Startled Awake - Costs 8, gives 11 mana.
Ulrich - 6/6, buff 3/3.
Imprisoned In The Moon - Make it cost 7 instead of 3.
Niblis of Frost - 1/1 buff on spell cast instead of 3/3.
Prized Amalgam - Can only be brought back by non-token Zombies.
Sanctifier of Souls - Costs 10 instead of 7.
Buffs
Bruna The Fading Light - Costs 14 instead of 18.
Geralf’s Masterpiece - 4/4 instead of 2/2.
Grim Flayer - Starts at 5/5, buffs 3/2, converts 4 gems instead of 2.
Minds Dilation - Gain 3 mana when your opponent casts any card.
Mindwrack Demon - Give it Haste.
Mirrorwing Dragon - Costs 17 instead of 20, damage triggers when opponent casts any spell.
Odric - Costs 16 instead of 24.
Tree of Perdition - 4/13 instead of 1/13, costs 15 instead of 18.
Cryptolith Rite - Convert 2 gems instead of 1.
Declaration in Stone - You Investigate no matter whose creature destroyed. Cost 8 instead of 10.
Elusive Tormenter - Make it 4/5 instead of 2/2.
Eternal Scourge - “buff:” Only return 1 copy to your hand.
Falkenrath Gorger - 6/3 instead of 4/3.
Flameblade Angel - 2 damage instead of 1.
Inexorable Blob - Starts at 5/5 instead of 3/3.
Spirit of the Hunt - Costs 15 instead of 18.
Ulvenwald Observer - Costs 11 instead of 14.
Westvale Abbey - Give it Vigilance (hence the ability to block), nerf Ormendahl to 8/7.