Since 0f3547c0fe8428e5c5909b6c7203df6a11a2cfce Fireball cannot target the player anymore. That was the only way to win said puzzle (by adding it and Chain Lightning to a tower, thereby destroying the Ghosts and dealing damage to the opponent directly).
Since 0f3547c0fe8428e5c5909b6c7203df6a11a2cfce Fireball cannot target the player anymore. That was the only way to win said puzzle (by adding it and Chain Lightning to a tower, thereby destroying the Ghosts and dealing damage to the opponent directly).