From d7ca06c599047ae196a1e3728e363adb4fb37a90 Mon Sep 17 00:00:00 2001
From: Northmoc <timothy.s.mocny@gmail.com>
Date: Fri, 2 Apr 2021 18:41:42 -0400
Subject: [PATCH] CostAdjustment.java support UnlessValidTarget param for
 Mavinda

---
 .../src/main/java/forge/game/cost/CostAdjustment.java       | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/forge-game/src/main/java/forge/game/cost/CostAdjustment.java b/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
index 7bad854935a..b69a6aab3c0 100644
--- a/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
+++ b/forge-game/src/main/java/forge/game/cost/CostAdjustment.java
@@ -541,7 +541,11 @@ public class CostAdjustment {
                 }
                 curSa = curSa.getSubAbility();
             }
-            if (!targetValid) {
+            if (st.hasParam("UnlessValidTarget")) {
+                if (targetValid) {
+                    return false;
+                }
+            } else if (!targetValid) {
                 return false;
             }
         }