Scenario: Progress whenever you play a Knight.
Prologue: Summon a bronze Knight from your deck to this row.
Chapter 1: Whenever an allied unit triggers Grace, boost its adjacent units by 2.
Chapter 2: Spawn and play Mad Charge.
Boost an allied unit by 5 and give it 2 Armor.
If it's a Knight, also give it Vitality (2).
Doomed: Status that removes the card from the game after it leaves the battlefield.
Summon: Move automatically to the battlefield (not considered played).
Grace: The first time this unit's power is equal to or higher than the specified amount, trigger the ability. If the condition is already met when it enters the battlefield, trigger it immediately.
Spawn: Add a card to the game.
Understandably, it had never occurred to any young knight or princeling, that the towers were erected for their own protection.