Grimoire of the Dead [Commander 2019] Elemental Knight ) Walking Archive enters the

) Walking Archive enters the battlefield with a +1/+1 counter on it

Counters aren't removed from your permanents due to game rules

and has "At the beginning of your upkeep

Set: Tenth Edition Type: Creature — Zombie Insect Rarity: Uncommon Cost: {2}{B} Sacrifice a creature: Nantuko Husk gets +2/+2 until end of turn

then each opponent loses life equal to the sacrificed creature's power

Grimoire of the Dead [Commander 2019] Elemental Knight ) Walking Archive enters theSet: Commander 2019 Type: Legendary Artifact Mythic Cost: {4} {1}, {T}, Discard a card: Put a study counter on Grimoire of the Dead. {T}, Remove three study counters from Grimoire of the Dead and sacrifice it: Put all creature cards from all graveyards onto the battlefield under your control. They're black Zombies in addition to their other colors and types.