
Reveal the top X cards of your library, where X is the greatest mana valuemana valueThe total amount of mana in a card's cost, ignoring colour. A card costing has mana value 4. X counts as 0 except on the stack. of a commander you own on the battlefield or in the command zonecommand zoneThe area where your commander waits before you cast it, and where it may return instead of going to the graveyard, exile, your hand or library.. You may put any number of permanent cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
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Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.