diff --git a/Dialog.js b/Dialog.js
index 7aa2b0a..8e94a89 100644
--- a/Dialog.js
+++ b/Dialog.js
@@ -392,7 +392,10 @@ Dialog.prototype.selectSomeCards = function (title,cards,arg,callback) {
 };
 
 Dialog.prototype.selectEner = function (title,cards,colors,cost,callback,onCancel) {
-	this.selectCardAdvanced(title,cards,null,false,false,onSelectChange,callback,onCancel);
+	var texts = cards.map(function (card) {
+		return card.cid === cost.source ? 'WARN' : '';
+	},this);
+	this.selectCardAdvanced(title,cards,texts,false,false,onSelectChange,callback,onCancel);
 
 	function onSelectChange (selectedIndexes,disable) {
 		var need = {};