Scute Swarm (Showcase) [Zendikar Rising] Magic 2011 If those permanents are exchanged

If those permanents are exchanged this way

His speed and flexibility quickly earned him promotion from apprentice to master artificer

Set: Dragons of Tarkir Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {4}{G}{W} This spell can't be countered

where X is that creature's power

Set: European Land Program Type: Basic Land — Mountain Rarity: Common ({T}: Add {R}

Scute Swarm (Showcase) [Zendikar Rising] Magic 2011 If those permanents are exchangedSet: Zendikar Rising Type: Creature Insect Rarity: Rare Cost: {2}{G} Landfall Whenever a land enters the battlefield under your control, create a 1 1 green Insect creature token. If you control six or more lands, create a token that's a copy of Scute Swarm instead.