True, Cyclonic Rift doesn't destroy anything - given a few turns, your foes will be able to rebuild and come at you with a vengeance
Yawgmoth is a mono-black creature who can set up powerful or even infinite combos with his abilities, centered on sacrifice and -1/-1 counters
3 Tatyova, Benthic Druid Put Those Lands To Work One of the strongest uncommon Commanders around, Tatyova, Benthic Druid might be a bit on the expensive side, but in Simic thats no problem at all
Many names of spells, effects, and items come straight out of a Dungeons Masters Guide or Players Handbook: Lightning Bolt Crystal Ball Fireball Phantasmal Forces Clone Invisibility Fabricate Ball Lightning Erase Fear Misdirection Jump Simulacrum Sleep Web Sunstone Shatter Visions Wall of Fire Wall of Stone Wall of Ice Wall of Sand Wall of Bone Pyrotechnics Ice Storm Reincarnate Descent into Madness Dehydration Brand Chain Lightning Entomb Dominate Animate Dead Teleport Resurrection Raise Dead And then you have similar effects like Phantasmal Terrain instead of Hallucinatory Terrain or Phantasmal Mount vs Phantom Steed, Fly vs Flight, etc