Jerren, Corrupted Bishop is a three mana black 2/3 that creates a 1/1 and makes you lose one life whenever it enters the battlefield or another nontoken Human you control dies
3 damage is a really important breakpoint at the moment, due to how many 3 Willpower characters there are in the meta that can come down on turns 2 and 3 and Smash deals with them efficiently

Arguel's Blood Fast Bandit's Talent Black Market Connections Braids's Frightful Return Braska's Final Aeon Call of the Ring Chains of Mephistopheles Coercive Impetus Construct a Cosmic Cube Dark Prophecy Demonic Covenant Demonic Lore Discreet Retreat Dockside Chef Echo of Death's Wail Elspeth's Nightmare Erebos, Bleak-Hearted Erebos, God of the Dead Forbidden Crypt Gravestorm Greed Greed's Gambit Grisly Transformation Hateful Eidolon Infernal Scarring Infernal Tribute Krovikan Fetish Krovikan Plague Lich Lich's Mastery Lithoform Blight Lord Skitter's Blessing Midnight Oil Mindless Conscription Mornsong Aria Necrodominance Necromancer's Stockpile Necropotence Nihilistic Glee Null Profusion Oath of Lim-Dl Obsessive Pursuit One Ring to Rule Them All Origin of Black Widow Out of the Tombs Phyrexian Arena Phyrexian Etchings Raiders' Spoils Robot Domination Rune of Mortality Scavenged Weaponry Scion of Halaster Scourgemark Sicken Soulreaper of Mogis Summon: Anima Tainted Well Teval's Judgment The Cloning of Shredder The Creation of Avacyn The Cruelty of Gix The Death of Gwen Stacy The Eldest Reborn The House Grows Hungry The Long Reach of Night The Revelations of Ezio The Rise of Sozin The Toymaker's Trap Tymaret Calls the Dead Underworld Connections Vampiric Rites Vampirism

Like any mechanic that draws cards, looting is extremely powerful
I think the idea is neat but especially seeing it executed without the the same skill as the original artist just makes this feel cheap
Thanks to its ability to draw a card the same turn it enters the battlefield as well as protect itself the following turn due to phasing out, Kaito is almost a surefire way to draw two cards for three CMC (converted mana cost)