Forge and Sovereign Blade’s upgrade
In the Forge Regent build, Sovereign Blade’s upgrade lowers its Energy cost from two to one. Forge adds damage to the Blade instead. The Blade is created during combat, so an ordinary rest-site upgrade cannot select the token in your permanent deck. Blessing of the Forge can upgrade it while it is in hand. Effects that upgrade existing cards must reach the Blade after it has been created; using an upgrade effect before the first Forge cannot improve a card that is not there yet.
Blade costs and support
A turn can produce a large Blade and still fail if all Energy went into setup. Summon Forth retrieves the Blade and Forges it, but the retrieved attack retains its own play cost. Calculate the complete turn, including Block, before spending everything to add more damage.
Retain allows the Blade to wait for a later turn. That is useful when the current attack must be blocked, but waiting also allows enemies to act and scale. If the existing Blade already kills a dangerous target, more Forge can be less useful than playing it now.
Parry adds Block to the Blade, Seeking Edge changes its coverage, and Sword Sage grants Replay. Choose the missing function rather than adding every Blade support card. A deck that already has enough damage may need retrieval or defense more than another increase to the displayed attack number.
