- Fixed a general bug that prevented the AI from using most X costs.

- Fixed a bug in AF GainLife that prevented the AI from using X costs.

res/cardsfolder/s/stream_of_life.txt

@@ -4,7 +4,6 @@ Types:Sorcery
 Text:no text
 A:SP$ GainLife | Cost$ X G | ValidTgts$ Player | TgtPrompt$ Select target player | LifeAmount$ X | SpellDescription$ Target player gains X life.
 SVar:X:Count$xPaid
-SVar:RemAIDeck:True
 SVar:Rarity:Common
 SVar:Picture:http://www.wizards.com/global/images/magic/general/stream_of_life.jpg
 SetInfo:8ED|Uncommon|http://magiccards.info/scans/en/8e/282.jpg

src/main/java/forge/ComputerUtil.java

@@ -454,7 +454,7 @@ public class ComputerUtil {
         int xMana = 0;
 
         for (int i = 1; i < 99; i++) {
-            if (!ComputerUtil.payManaCost(sa, player, true, xMana)) {
+            if (!ComputerUtil.payManaCost(sa, player, true, i)) {
                 break;
             }
             xMana = i;

src/main/java/forge/card/abilityfactory/AbilityFactoryAlterLife.java

@@ -239,8 +239,16 @@ public class AbilityFactoryAlterLife {
         final Cost abCost = sa.getPayCosts();
         final Card source = sa.getSourceCard();
         final int life = AllZone.getComputerPlayer().getLife();
-        final int lifeAmount = AbilityFactory.calculateAmount(af.getHostCard(), params.get("LifeAmount"), sa);
         final String amountStr = params.get("LifeAmount");
+        int lifeAmount = 0;
+        if (amountStr.equals("X") && source.getSVar(amountStr).equals("Count$xPaid")) {
+            // Set PayX here to maximum value.
+            final int xPay = ComputerUtil.determineLeftoverMana(sa);
+            source.setSVar("PayX", Integer.toString(xPay));
+            lifeAmount = xPay;
+        } else {
+            lifeAmount = AbilityFactory.calculateAmount(af.getHostCard(), amountStr, sa);
+        }
 
         // don't use it if no life to gain
         if (lifeAmount <= 0) {
@@ -298,12 +306,6 @@ public class AbilityFactoryAlterLife {
             }
         }
 
-        if (amountStr.equals("X") && source.getSVar(amountStr).equals("Count$xPaid")) {
-            // Set PayX here to maximum value.
-            final int xPay = ComputerUtil.determineLeftoverMana(sa);
-            source.setSVar("PayX", Integer.toString(xPay));
-        }
-
         boolean randomReturn = r.nextFloat() <= .6667;
         if (AbilityFactory.playReusable(sa)) {
             randomReturn = true;