*Com Deck editor basic lands handled.

*Preliminary commander damage blocking ai (not yet fully in effect)

src/main/java/forge/Card.java

@@ -1877,6 +1877,15 @@ public class Card extends GameEntity implements Comparable<Card> {
         if(this.isCommander)
         {
             sb.append(this.getOwner().getName() + "'s Commander\r\n");
+            for(Player p : getOwner().getGame().getPlayers()) {
+                if(p.equals(getOwner()))
+                    continue;
+                
+                Map<Card,Integer> map = p.getCommanderDamage();
+                if(map.containsKey(this)) {
+                    sb.append("Damage to " + p.getName() + ": "+ map.get(p) + "\r\n");
+                }
+            }
         }
         sb.append(this.getAbilityText());
 

src/main/java/forge/game/ai/ComputerUtilCombat.java

@@ -311,6 +311,25 @@ public class ComputerUtilCombat {
 
             final List<Card> blockers = combat.getBlockers(attacker);
             
+            if(attacker.isCommander())
+            {
+                int possibleCommanderDamage = attacker.getCurrentPower();
+                int currentCommanderDamage = ai.getCommanderDamage().containsKey(attacker) ? ai.getCommanderDamage().get(attacker) : 0;
+                if(blockers.size() > 0) {
+                    if(attacker.getKeyword().contains("Trample")) {
+                        for(Card b : blockers) {
+                            possibleCommanderDamage -= b.getCurrentToughness();
+                        }
+                    }
+                    else {
+                        possibleCommanderDamage = 0;
+                    }
+                }
+                
+                if(possibleCommanderDamage + currentCommanderDamage >= 21)
+                    return true;
+            }
+
             if (blockers.size() == 0) {
                 if (!attacker.getSVar("MustBeBlocked").equals("")) {
                     return true;

src/main/java/forge/gui/deckeditor/controllers/CEditorCommander.java

@@ -112,9 +112,10 @@ public final class CEditorCommander extends ACEditorBase<PaperCard, Deck> {
         if ((item == null) || !(item instanceof PaperCard) || toAlternate) {
             return;
         }
-        if(controller.getModel().getMain().contains((PaperCard)item)
+        if((controller.getModel().getMain().contains((PaperCard)item)
                 || controller.getModel().getOrCreate(DeckSection.Sideboard).contains((PaperCard)item)
-                || controller.getModel().getOrCreate(DeckSection.Commander).contains((PaperCard)item)) {
+                || controller.getModel().getOrCreate(DeckSection.Commander).contains((PaperCard)item))
+                && !((PaperCard)item).getRules().getType().isBasic()) {
             return;
         }