Sly is a new keyword for the Silent. Sly cards have an additional effect that triggers automatically when they are discarded from your hand, opening discard-focused strategies beyond the classic discard synergy.
How Sly works
Sly cards are played normally OR can be discarded for their Sly effect. If your hand is full at turn end, Sly cards discarded by overflow also trigger.
This creates interesting choices: do you play the card now for its main effect, or discard it for the Sly trigger?
Sly synergizes with cards and relics that reward discarding: Calculated Gamble, Tools of the Trade, Tingsha.
Building with Sly
A Sly-focused Silent deck wants reliable discard outlets and draw to cycle through cards quickly. Sly + discard synergy is one of the strongest new STS2 archetypes.
Runic Pyramid becomes double-edged — cards in hand can never be discarded by overflow, blocking Sly triggers. Consider this when choosing your act Blessing.