This clever loop starts by using Mindless Automaton's ability to remove two +1/+1 counters and draw a card. That draw immediately fires off Wizard Class's Level 3 trigger, which tries to place a +1/+1 counter back onto your creature. However, because Vorinclex, Monstrous Raider is doubling all counters you would receive, that single counter becomes two instead. You've essentially created a self-sustaining engine where removing two counters to draw a card yields two fresh counters in return, letting you repeat the process indefinitely.