Priests introduced a lot of ways to discard enhancements (so you can get those W/C if you can play them).
To get some of these out pre-block, you can use one of these cards:
Altar of Burnt Offering (Pi)
Type: Artifact • Brigade: None • Ability: None • Class: None • Special Ability: You may play up to two offering Enhancements during your preparation phase. They activate immediately, and then are discarded. • Play As: You may play up to two offering Enhancements during your preparation phase [play an enhancement]. They activate immediately, and then are discarded. • Identifiers: OT, Tabernacle Item, Temple Item • Verse: Exodus 27:1 • Availability: Priests booster packs (Ultra Rare)
Joiada, Son of Eliashib (FF)
Type: Hero Char. • Brigade: Teal • Ability: 6 / 5 • Class: None • Special Ability: If Zerubbabel’s Temple is in play, you may search discard pile for an offering or feast Enhancement and add it to hand or battle. • Identifiers: OT Male Human, Zerubbabel's Temple High Priest (House of Eleazar) • Verse: Nehemiah 12:10 • Availability: Faith of our Fathers booster packs (None)
There are three offerings (that I know of) that discard evil enhancements. The nice thing is that you could recur (play them in prep, recur them during RA with Joiada). These are:
Burnt Offering (Pi)
Type: Hero Enh. • Brigade: Teal • Ability: 2 / 5 • Class: None • Special Ability: Discard all evil Enhancements in play. • Identifiers: OT, Offering • Verse: Leviticus 1:3 • Availability: Priests booster packs (Common)
Guilt Offering (Pi)
Type: Hero Enh. • Brigade: Teal • Ability: 2 / 5 • Class: None • Special Ability: Discard an evil Enhancement or Curse in play for each human Hero you have in play. • Identifiers: OT, Offering • Verse: Leviticus 5:15 • Availability: Priests booster packs (Common)
Sin Offering (Pi)
Type: Hero Enh. • Brigade: Teal • Ability: 2 / 5 • Class: None • Special Ability: Discard an evil Enhancement or Curse in play for each evil brigade in play. • Identifiers: OT, Offering • Verse: Leviticus 4:3 • Availability: Priests booster packs (Common)
And just to add them to your list, here are the rest of the Priests cards I know about that can discard them, but you'd need to find other ways to play them (two are CBN though, so that's nice).
Holy Priesthood (Pi)
Type: Hero Enh. • Brigade: White • Ability: 3 / 4 • Class: None • Special Ability: Discard an evil Enhancement or Curse in play. Cannot be negated if used by a N.T. Hero. • Identifiers: None • Verse: I Peter 2:5 • Availability: Priests booster packs (Common)
Royal Priesthood (Pi)
Type: Hero Enh. • Brigade: Red • Ability: 3 / 4 • Class: None • Special Ability: Discard an evil Enhancement or Curse in play. Cannot be negated if used by a N.T. Hero. • Identifiers: None • Verse: I Peter 2:9 • Availability: Priests booster packs (Common)
Inspection (Pi)
Type: Hero Enh. • Brigade: Teal • Ability: 1 / 4 • Class: None • Special Ability: Reveal the top card of draw pile. If it is a good card, you may discard it to discard any number of evil Enhancements or Curses in play. Otherwise place it beneath draw pile. • Identifiers: None • Verse: Leviticus 27:11 • Availability: Priests booster packs (Common)
Spiritual Sacrifices (Pi)
Type: Hero Enh. • Brigade: Blue • Ability: 2 / 4 • Class: None • Special Ability: Discard a good card from hand to discard up to two evil Enhancements or Curses in play. • Identifiers: None • Verse: I Peter 2:5 • Availability: Priests booster packs (Common)
Fear of the Lord (Pi)
Type: Hero Enh. • Brigade: Yellow • Ability: 3 / 4 • Class: None • Special Ability: Discard an evil Enhancement or Curse in play. • Identifiers: None • Verse: II Chronicles 19:9 • Availability: Priests booster packs (Common)
I know that was lengthy, but I hope it was helpful