If everyone is extremely worried about Hulk-Flash, I would advocate the following changes to my list:

Current Pikula:

4 Dark Confidant
3 Nantuko Shade
3 Hypnotic Specter
2 Jotun Grunt
2 Rotting Giant

4 Duress
4 Hymn to Tourach
2 Sword of Fire and Ice
2 Swords to Plowshares
4 Vindicate
3 Engineered Plague
4 Dark Ritual

4 Wasteland
3 Bloodstained Mire
3 Polluted Delta
4 Scrubland
2 Godless Shrine
1 Flagstones of Trokair
5 Swamp

sb:
4 Dystopia
2 Withered Wretch
1 Engineered Plague
1 Sword of Light and Shadow
1 Darkblast
3 Null Rod
2 Disenchant
1 Serenity

Changes:
-2 Jotun Grunt
+1 Rotting Giant
+1 Nantuko Shade

-2 Swords to Plowshares
-1 Engineered Plague
+3 Leyline of the Void

Sb:
-2 Withered Wretch
+1 Leyline of the Void
+1 Engineered Plague