古代学者、メリア

You may tap any untapped nontoken artifact to activate Meria’s abilities, including artifact creatures that entered the battlefield this turn, even if they don’t have haste.

You must pay all costs and follow all timing restrictions for cards you play with Meria’s last ability. For example, you may only play a land card this way during a main phase of your own turn, and only if you haven’t yet played a land this turn.