"They groaned, they stirred, they all uprose,/ Nor spake, nor moved their eyes;/ It had been strange, even in a dream,/ To have seen those dead men rise."/ —Samuel Coleridge, "The Rime of the Ancient Mariner"
Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.
Earth Elementals have the eternal strength of stone and the endurance of mountains. Primordially connected to the land they inhabit, they take a long-term view of things, scorning the impetuous haste of short-lived mortal creatures.
Cast this spell only during the declare blockers step. Remove target creature defending player controls from combat. Creatures it was blocking that had become blocked by only that creature this combat become unblocked. You may have it block an attacking creature of your choice.
Fire Elementals are ruthless infernos, annihilating and consuming their foes in a frenzied holocaust. Crackling and blazing, they sear swift, terrible paths, leaving the land charred and scorched in their wake.