Aphelia, Viper Whisperer + Wound Reflection

Prerequisites

You control a Gorgon and/or Snake that does not have summoning sickness and that cannot be blocked by an opponent

Steps

1. Activate Aphelia by paying {4}{B}, causing an opponent to lose half their life total, rounded up, whenever they are dealt combat damage by a Gorgon or Snake this turn.
2. Deal combat damage to the opponent using a Gorgon and/or Snake.
3. Aphelia triggers, causing the opponent to lose half their life total, rounded up.
4. At the beginning of your end step, Wound Reflection triggers, causing the opponent to lose life equal to the life they've lost this turn.
5. The opponent loses the game due to having 0 or less life.