mtg cards like keen sense | Planar Chaos - Japanese Enchant creature Whenever enchanted creature deals damage to an opponent Snake Umbra - Commander 2018

There are nonetheless some great options with these sorcery speed cards

Cabal CoffersCabal Coffers isn't exactly a new card itself, and neither are several of the black mana-doublers, so getting to the point where you could afford to repeatedly pay Kokusho's commander tax and immediately sacrifice it to a Phyrexian PlaguelordPhyrexian Plaguelord wasn't difficult

6 Wavebreak Hippocamp An interesting creature to consider for a control-based Commander deck, Wavebreak Hippocamp does one thing but does it exceptionally well

Alhamarrets Archive may be the stronger of the two cards offering this ability, depending on what youre trying to accomplish