They are both high tempo and high powered cards that could round out the one drop section without having to resort to vanilla 1/1 and 1/2 bestow cards
If their deck utilizes the graveyard, then Faithless Looting is even better and has no downside at all
Assert Authority Blinkmoth Infusion Broodstar Chiss-Goria, Forge Tyrant Chromescale Drake Demonic Junker Don & Raph, Hard Science Emry, Lurker of the Loch Ethersworn Sphinx Frogmite Frogmyr Enforcer Furnace Dragon Furnace Hellkite Gearseeker Serpent Imskir Iron-Eater Into Thin Air Krang, Master Mind Lens Flare Memory Guardian Mycosynth Golem Myr Enforcer Panther Robot Plated Onslaught Quicksilver Behemoth Qumulox Reality Heist Refurbished Familiar Saheeli, the Gifted Sami, Wildcat Captain Scale of Chiss-Goria Slag Strider Sojourner's Companion Somber Hoverguard Steelfin Whale Tezzeret, Master of the Bridge Thought Monitor Thoughtcast Tooth of Chiss-Goria Utrom Monitor Valkyrie Aerial Unit Voyage Home
And should he return, he regains his influence on those creatures
I played a lot of monoblack aggressive decks at the time, and it was just one more two-powered beatstick
This list is primarily aimed at Commander players who need a hand sheltering their cards from their opponents