diff --git a/mods/randomness_but_tool.js b/mods/randomness_but_tool.js
index 39762bea..674351e8 100644
--- a/mods/randomness_but_tool.js
+++ b/mods/randomness_but_tool.js
@@ -88,3 +88,20 @@ elements.rg3 = {
 	excludeRandom: true,
 };
 
+elements.daoe = {
+	name: "delete all of element",
+	color: ["#a7a7a7", "#a7a7a7", "#a7a7a7", "#a7a7a7", "#000000", "#000000", "#000000", "#000000"],
+	tool: function(pixel) {
+		for (var i = 1; i < width; i++) {
+			for (var j = 1; j < height; j++) {
+				if (!isEmpty(i,j)) {
+					if(pixelMap[i][j].element == pixel.element) {
+						deletePixel(i,j)
+					}
+				}
+			}
+		}
+	},
+	category: "tools",
+	excludeRandom: true,
+};