Bocón, Do Your Thing

Bocón, Do Your Thing enters with a number of loyalty counters on him equal to the number of lands you control.
+1: Surveil 2.
-3: Exile target creature.
-6: You may put an artifact card from your hand or graveyard onto the battlefield.
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What did he do? What did he do? Why did he try to attack me? Oh my gosh! Pierre Gasly