- Do not set an EndOfTurnLeavePlay SVar on Dash cards (seems to have no functional effect while preventing the AI from ever casting the card for its full mana cost after it was dashed once).

forge-game/src/main/java/forge/game/ability/effects/PermanentEffect.java

@@ -26,7 +26,6 @@ public class PermanentEffect extends SpellAbilityEffect {
         // some extra for Dashing
         if (sa.isDash()) {
             c.addExtrinsicKeyword("Haste");
-            c.setSVar("EndOfTurnLeavePlay", "True");
             c.updateKeywords();
         }
     }