These initial elementals from Lorwyn and Morningtide mostly played it safe when choosing the ETB effects, probably understanding that the mechanic on its own already added power and complexity
Collecting cards is fun

Acererak the Archlich Aphemia, the Cacophony Archdemon of Unx Assemble the Rank and Vile Bone Miser Boneclad Necromancer Bridge from Below Cellar Door Cemetery Reaper Corpse Cobble Cradle of the Accursed Crowded Crypt Cryptbreaker Curse of Disturbance Curse of Shallow Graves Curse of the Restless Dead Death Tyrant Deluge of the Dead Diregraf Colossus Doomed Dissenter Drana's Chosen Dread Summons Drunau Corpse Trawler Dunes of the Dead Dying to Serve Embalmed Ascendant Falcon Abomination Feast or Famine Field of the Dead Flip the Switch Ghoulcaller's Accomplice Ghoulish Procession Graf Harvest Gravedig Graveyard Marshal Grim Reaper's Scythe Grixis Slavedriver Havengul Runebinder Headless Rider Hildibrand Manderville Hildibrand Manderville Hobbling Zombie Hour of Victory Jadar, Ghoulcaller of Nephalia Kalitas, Traitor of Ghet Lair of the Ashen Idol Liliana's Devotee Liliana's Reaver Liliana, Death's Majesty Liliana, Dreadhorde General Liliana, Heretical Healer Magus of the Bridge Midnight Ritual Necromancer's Covenant Necromancer's Stockpile Necromaster Dragon Necromentia Nested Ghoul Never // Return Never // Return Nevinyrral, Urborg Tyrant No Way Out Noosegraf Mob Null Caller Oath of Liliana Oglor, Devoted Assistant Open the Graves Overseer of the Damned Poppet Stitcher Rank Officer Reap the Seagraf Revenge of the Drowned

Wan Shi Tong enters with X counters, draws you a ton of cards, and then grows every time an opponent searches their library
You may makes this card a real winner, as you don't have to if your life is waning or it doesn't make sense
All color hosers are probably against the spirit of Commander 15 years ago