Harvester of Misery

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.

When this artifact enters, scry 2. Whenever another artifact you control with mana value 3 or greater enters, create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."

If you would create one or more artifact tokens, instead create those tokens plus an additional Map token. (It's an artifact with "1, T, Sacrifice this token: Target creature you control explores. Activate only as a sorcery.") 1U, T: Create a token that's a copy of target artifact token you control.

Menace At the beginning of your upkeep, you may create a Treasure token. When you do, target opponent creates a tapped Treasure token. Whenever this creature attacks, it deals damage to defending player equal to the number of artifacts they control.

Create a token that's a copy of target artifact or creature you control, except it's an artifact in addition to its other types. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

When this enchantment enters, search your library for up to five land cards that have different names, exile them, then shuffle. At the beginning of your end step, choose a card at random exiled with this enchantment and put it onto the battlefield tapped.

When this creature enters, create a 3/3 colorless Golem artifact creature token. 2, T: Put a +1/+1 counter on each creature token you control. They gain trample until end of turn.

Trample Whenever this creature or another creature you control with power 4 or greater enters, you gain 3 life and draw a card. When this creature dies, if it's not a token, create a token that's a copy of it, except it's an artifact in addition to its other types.