Alhama'at's Ultra Magic Stone (SDR6-012) [Starter Deck: The Lost Tomes]

Rest: Produce 1. Rest: Target Historical resonator gains [+200/+200] until end of turn. 2, Rest: Reveal the top card of your deck. If it's a Historical, put it into your hand. When you control two or more true magic stones that share a name -> Banish all but one of them.