From 89a91c6df88ce85a01ab643da88057f45222d64e Mon Sep 17 00:00:00 2001
From: Northmoc <timothy.s.mocny@gmail.com>
Date: Thu, 29 Jul 2021 21:46:02 -0400
Subject: [PATCH] placeholder for special param that picks new ability if no
 legal targets

---
 .../game/ability/effects/ChooseGenericEffect.java | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/forge-game/src/main/java/forge/game/ability/effects/ChooseGenericEffect.java b/forge-game/src/main/java/forge/game/ability/effects/ChooseGenericEffect.java
index b249d308327..3204f34fa40 100644
--- a/forge-game/src/main/java/forge/game/ability/effects/ChooseGenericEffect.java
+++ b/forge-game/src/main/java/forge/game/ability/effects/ChooseGenericEffect.java
@@ -8,6 +8,7 @@ import com.google.common.collect.Lists;
 import forge.game.ability.AbilityUtils;
 import forge.game.ability.SpellAbilityEffect;
 import forge.game.card.Card;
+import forge.game.card.CardUtil;
 import forge.game.event.GameEventCardModeChosen;
 import forge.game.player.Player;
 import forge.game.spellability.SpellAbility;
@@ -81,6 +82,20 @@ public class ChooseGenericEffect extends SpellAbilityEffect {
                 chosenSAs = p.getController().chooseSpellAbilitiesForEffect(abilities, sa, prompt, amount, ImmutableMap.of());
             }
 
+            // TODO: Move this up into the AtRandom area
+            for (SpellAbility chosenSA : chosenSAs) {
+                if (sa.getParam("ChangeToAtRandom").equals("Urza") && chosenSA.usesTargeting()) {
+                    List<Card> validTargets = CardUtil.getValidCardsToTarget(chosenSA.getTargetRestrictions(), sa);
+                    if (validTargets.isEmpty()) {
+                        List <SpellAbility> newChosenSAs = Lists.newArrayList();
+                        Aggregates.random(abilities, amount, newChosenSAs);
+                        chosenSAs = newChosenSAs;
+                    } else {
+                        p.getController().chooseTargetsFor(chosenSA);
+                    }
+                }
+            }
+
             if (!chosenSAs.isEmpty()) {
                 for (SpellAbility chosenSA : chosenSAs) {
                     String chosenValue = chosenSA.getDescription();