Activate Viscera Seer by sacrificing Accomplished Automaton.
When Accomplished Automaton dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When Accomplished Automaton enters, its fabricate ability triggers, putting a +1/+1 counter on it.
Resolve the Viscera Seer ability.
Repeat.
This crafty loop centers on the recursive engine provided by Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, whose back face grants your nontoken creatures persist to keep them crawling back from the grave. When you sacrifice Accomplished Automaton to Viscera Seer, its persist ability triggers to return it with a -1/-1 counter, which is immediately canceled out by the +1/+1 counter from Accomplished Automaton's fabricate ability. Because the counters annihilate each other state-based style, the automaton enters with a clean slate every time, allowing you to repeat the sacrifice indefinitely for an endless stream of triggers and infinite scrys.