Cast Chain of Plasma by paying 1, dealing 3 damage to Screaming Nemesis and causing you to discard a card and copy Chain of Plasma targeting Screaming Nemesis
Taii Wakeen and Screaming Nemesis trigger.
Resolve the Taii Wakeen trigger, causing you to draw a card.
Resolve the Screaming Nemesis trigger, dealing 3 damage to any target.
Resolve the Chain of Plasma copy, dealing 3 damage to Screaming Nemesis and causing you to discard a card and copy Chain of Plasma targeting Screaming Nemesis.