During Your Main Phase (Lv. 1-2): Once during your turn, you can Summon one Tribute Summon Spirit from your hand directly to the Field without paying its Tribute Cost. Any "When Summoned" effects the new Spirit may have do not activate when using this ability. During Your Attack Phase (Lv. 2): All of your "Dragon Emperor" and "Dragon Knight" Attribute Spirits are upgraded to their highest Battle Level.