Here's something else to try in lieu of the I Am Holy strategy.
Amasai the Raider and Warrior's Spear splashed in.
Gabriel, Angel of the Harvest, Seraph, Angel at Jerusalem
Micah, Nahum
Striking Herod, Protection of Angels, Flaming Sword or Fire/Smoke/Sulfur, depending on if you want another negate or another battle winner
Spiritual Warfare, Wickedness Removed, Two Bears or Swords Into Plowshares
That gives you three characters that discard at least one card from deck (five if you use Hidden Treasures), Wickedness Removed, banding, Site access, battle-winner recursion. And if you don't like the spread you can dump Amasai/Spear and just put a silver Hero back in, maybe Angel at Shur or something.