Simple but powerful card for any deck whose hero expects to thwart most turns. Like the Aggressive and Defensive versions before it, Heroic Conditioning takes the Core Set stat buff upgrade and adds one to the cost but also adds 3 hp, an exchange that's generally well worth it. The combination is perfect as the stat buff sets up your long-term value while the hp buff gives you some time to get there. Cards like Overwatch or additional ready effects can get even more mileage out of the buff with additional uses of the thwart stat each turn. This is a great general-purpose card that belongs in lots of decks!