added Infused Arrows and Engineered Explosives

.gitattributes

@@ -2487,6 +2487,7 @@ res/cardsfolder/e/energy_storm.txt svneol=native#text/plain
 res/cardsfolder/e/energy_tap.txt svneol=native#text/plain
 res/cardsfolder/e/enervate.txt svneol=native#text/plain
 res/cardsfolder/e/enfeeblement.txt svneol=native#text/plain
+res/cardsfolder/e/engineered_explosives.txt -text
 res/cardsfolder/e/engineered_plague.txt svneol=native#text/plain
 res/cardsfolder/e/engulfing_flames.txt svneol=native#text/plain
 res/cardsfolder/e/engulfing_slagwurm.txt svneol=native#text/plain
@@ -4045,6 +4046,7 @@ res/cardsfolder/i/infinite_hourglass.txt -text
 res/cardsfolder/i/inflame.txt svneol=native#text/plain
 res/cardsfolder/i/information_dealer.txt svneol=native#text/plain
 res/cardsfolder/i/infuse.txt svneol=native#text/plain
+res/cardsfolder/i/infused_arrows.txt -text
 res/cardsfolder/i/ingenious_thief.txt svneol=native#text/plain
 res/cardsfolder/i/ingot_chewer.txt svneol=native#text/plain
 res/cardsfolder/i/inheritance.txt svneol=native#text/plain

res/cardsfolder/e/engineered_explosives.txt

@@ -0,0 +1,11 @@
+Name:Engineered Explosives
+ManaCost:X
+Types:Artifact
+Text:no text
+K:Sunburst
+A:AB$ DestroyAll | Cost$ T Sac<1/CARDNAME> | ValidCards$ Permanent.nonLand+cmcEQX | SpellDescription$ Destroy each nonland permanent with converted mana cost equal to the number of charge counters on CARDNAME.
+SVar:X:Count$CardCounters.CHARGE
+SVar:Rarity:Rare
+SVar:Picture:http://www.wizards.com/global/images/magic/general/engineered_explosives.jpg
+SetInfo:5DN|Rare|http://magiccards.info/scans/en/5dn/118.jpg
+End

res/cardsfolder/i/infused_arrows.txt

@@ -0,0 +1,14 @@
+Name:Infused Arrows
+ManaCost:4
+Types:Artifact
+Text:no text
+K:Sunburst
+#ChosenX SVar created by Cost payment
+A:AB$ Pump | Cost$ T SubCounter<X/CHARGE> | ValidTgts$ Creature | TgtPrompt$ Select target creature | NumAtt$ -ChosenX | NumDef$ -ChosenX | SpellDescription$ Target creature gets -X/-X until end of turn.
+SVar:X:XChoice
+SVar:RemAIDeck:True
+SVar:RemRandomDeck:True
+SVar:Rarity:Uncommon
+SVar:Picture:http://www.wizards.com/global/images/magic/general/infused_arrows.jpg
+SetInfo:5DN|Uncommon|http://magiccards.info/scans/en/5dn/133.jpg
+End

src/main/java/forge/card/cost/CostMana.java

@@ -239,6 +239,7 @@ public class CostMana extends CostPart {
         final Input payX = new Input() {
             private static final long serialVersionUID = -6900234444347364050L;
             private int xPaid = 0;
+            private String colorsPaid = "";
             private ManaCost manaCost = new ManaCost(Integer.toString(numX));
 
             @Override
@@ -270,6 +271,9 @@ public class CostMana extends CostPart {
 
                 this.manaCost = InputPayManaCostUtil.activateManaAbility(sa, card, this.manaCost);
                 if (this.manaCost.isPaid()) {
+                    if (!colorsPaid.contains(this.manaCost.getColorsPaid())) {
+                        colorsPaid += this.manaCost.getColorsPaid();
+                    }
                     this.manaCost = new ManaCost(Integer.toString(numX));
                     this.xPaid++;
                 }
@@ -291,6 +295,8 @@ public class CostMana extends CostPart {
                 this.stop();
                 payment.getCard().setXManaCostPaid(this.xPaid);
                 payment.paidCost(costMana);
+                payment.getCard().setColorsPaid(colorsPaid);
+                payment.getCard().setSunburstValue(colorsPaid.length());
             }
 
         };