WARCANA - Campaign Mission 9: Sabotage. Absolute grinder of a victory (no commentary).
Not sure how much I can say about this one, it's a battle of attrition, you need to play super defensively and keep your base and eco alive through smart walling methods, while aiming for a push in a later round with 2x blasters and 2x saboteurs, you need to have enough unit cards in your deck to get all 4 of these to be usable on one round and some spells.