Its a great aesthetic, and its clearly proving to be very popular among Final Fantasy/MTG fans, given the prevalence of this card type on this list
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) : Destroy target creature

Take a look at the entire Commander deck below: Creatures (37) 1 Crystalline Sliver 1 Winged Sliver 1 Clot Sliver 1 Shifting Sliver 1 Blade Sliver 1 Synapse Sliver 1 Brood Sliver 1 Quick Sliver 1 Crypt Sliver 1 Hibernation Sliver 1 Bonesplitter Sliver 1 Firewake Sliver 1 Gemhide Sliver 1 Harmonic Sliver 1 Might Sliver 1 Two-Headed Sliver 1 Necrotic Sliver 1 Sinew Sliver 1 Bonescythe Sliver 1 Blur Sliver 1 Sentinel Sliver 1 Striking Sliver 1 Megantic Sliver 1 Galerider Sliver 1 Syphon Sliver 1 Manaweft Sliver 1 Constricting Sliver 1 Sliver Hivelord 1 Diffusion Sliver 1 Venom Sliver 1 Lavabelly Sliver 1 Hollowhead Sliver 1 Cloudshredder Sliver 1 Spiteful Sliver 1 Cleaving Sliver 1 Realmwalker 1 Sliver Gravemother Lands (46) 3 Forest 2 Plains 2 Swamp 2 Mountain 2 Island 1 Rocky Tar Pit 1 Mountain Valley 1 Grasslands 1 Flood Plain 1 Jungle Shrine 1 Savage Lands 1 Seaside Citadel 1 Exotic Orchard 1 Command Tower 1 Nomad Outpost 1 Mystic Monastery 1 Sandsteppe Citadel 1 Opulent Palace 1 Frontier Bivouac 1 Prairie Stream 1 Sunken Hollow 1 Smoldering Marsh 1 Cinder Glade 1 Canopy Vista 9 Wastes 1 Ash Barrens 1 Irrigated Farmland 1 Sheltered Thicket 1 Scattered Groves 1 Path of Ancestry 1 Unclaimed Territory 1 Secluded Courtyard Spells (17) What do you think of the Sliver Swarm deck

Every time you trade a creature in combat or sacrifice one for value, Elenda becomes a bigger threat
This means you can swing in with a horde of cheap tokens, and then immediately play a massive Eldrazi or Dragon or something
In particular, he said that he "wish we'd done a better job when announcing it of making players understand what it is", 'it' being a reduced print, made-for-draft mashup of both sets meant for limited play in stores