Erhnam Djinn (Oversized) [Oversize Cards] Magic Player Rewards 2011 If those permanents are exchanged

If those permanents are exchanged this way

It has the strength of seven men

Set: Unlimited Edition Type: Creature — Dragon Rarity: Rare Cost: {4}{R}{R} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Alpha Edition Type: Land — Forest Plains Rarity: Rare ({T}: Add {G} or {W}

Set: Starter 1999 Type: Sorcery Rarity: Rare Cost: {3}{W} Destroy all lands

Erhnam Djinn (Oversized) [Oversize Cards] Magic Player Rewards 2011 If those permanents are exchangedSet: Oversize Cards Rarity: Rare During your upkeep, you must choose one of opponent's non wall creatures in play. Until your next upkeep, that creature gains the forestwalk ability. If opponent has no creatures, ignore this effect.