diff --git a/Mage.Sets/src/mage/cards/i/IsolatedWatchtower.java b/Mage.Sets/src/mage/cards/i/IsolatedWatchtower.java
index f3307da13fb..e21c382fbd7 100644
--- a/Mage.Sets/src/mage/cards/i/IsolatedWatchtower.java
+++ b/Mage.Sets/src/mage/cards/i/IsolatedWatchtower.java
@@ -102,7 +102,7 @@ class IsolatedWatchtowerCondition implements Condition {
                 StaticFilters.FILTER_LAND, source.getControllerId(), game
         );
         for (UUID opponentId : game.getOpponents(source.getControllerId())) {
-            if (numLands < 1 + game.getBattlefield().countAll(
+            if (numLands + 2 <= game.getBattlefield().countAll(
                     StaticFilters.FILTER_LAND, opponentId, game
             )) {
                 return true;