Sack the Shifty (Red)

Contract - You are contracted to banish opponents' cards with base go again. Whenever you complete this contract, create a Silver token.

When this hits a hero, banish the top card of their deck.

Rulings

From the Dynasty release notes

To banish an opponent’s cards, you must be the one instructed by an effect to do the banishing. If an opponent is instructed by an effect to banish a card, it does not complete the contract because YOU are not banishing an opponent’s card.
This contract can be completed any number of times, as long as this is face-up in the arena.
The condition that the card has base go again refers to whether the card is printed with go again or not. The card banished must simply have “go again” written in their text box, without being conditional (preceded by a condition) or having been granted by an effect.

Keyword notes

Contract

Contract is both a label keyword and an effect keyword. As a label keyword it represents a static ability that generates a continuous effect and a triggered effect. As an effect keyword it is a continuous effect.
When a player is contracted, they are given a set of instructions to complete. If they perform those instructions, they are considered to have completed the contract.
Unless otherwise specified, contracts can be completed any number of times while they are active. For most cards, this means while the card is face-up in the arena on the combat chain and not defending.

All keywords

ClassAssassin

TypeAttack Action

Cost0

Attack4

Defense3

PitchRed

KeywordsContract

SetsARK, DYN