Added Corwin72's Don't go in the water as a realistic mode quest named:

Mr Slate 3

.gitattributes

@@ -184,6 +184,7 @@ res/quest/decks/Magnum[!!-~]2.dck -text
 res/quest/decks/Magnum[!!-~]3.dck -text
 res/quest/decks/Marge[!!-~]Simpson[!!-~]3.dck -text
 res/quest/decks/Morpheus[!!-~]3.dck -text
+res/quest/decks/Mr[!!-~]Slate[!!-~]3.dck -text
 res/quest/decks/Napoleon[!!-~]3.dck -text
 res/quest/decks/Ned[!!-~]Flanders[!!-~]1.dck -text
 res/quest/decks/Ned[!!-~]Flanders[!!-~]2.dck -text

res/quest/decks/Mr Slate 3.dck

@@ -0,0 +1,23 @@
+Mr Slate 3
+[general]
+constructed
+[main]
+4 Spreading Seas
+3 Cold-Eyed Selkie
+4 Kabira Crossroads
+1 Mox Sapphire
+4 Lord of Atlantis
+3 Plains
+2 Enclave Elite
+6 Island
+4 Merfolk Sovereign
+4 Avian Changeling
+4 Glacial Fortress
+3 Inkfathom Divers
+4 Echoing Truth
+2 Merrow Harbinger
+1 Mox Pearl
+3 Deeptread Merrow
+4 Tundra
+4 Counterspell
+[sideboard]

res/quest/hard.txt

@@ -47,6 +47,7 @@ Maggie Simpson 3
 Magneto 3
 Magnum 3
 Marge Simpson 3
+Mr Slate 3
 Morpheus 3
 Napoleon 3
 Ned Flanders 3

src/forge/Gui_Quest.java

@@ -527,6 +527,8 @@ public class Gui_Quest extends JFrame implements NewConstants{
         sb.append("\r\n");
         sb.append("Morpheus 3		hard	Elves with Overrun, Gaea's Anthem, Imperious Perfect and other pumps");
         sb.append("\r\n");
+        sb.append("Mr Slate 3		hard	Corwin72's Don't Go in the Water deck with mods, Merfolk and Merfolk pumps");
+        sb.append("\r\n");
         sb.append("Napoleon 3		hard	Walls, Rolling Stones and Doran, the Siege Tower");
         sb.append("\r\n");
         sb.append("Ned Flanders 1		easy	Sloth's reanimator deck, a few large creatures and some spells");