Crusader Tonic
聖戦の薬 [seisen no yaku] or 'holy war medication' in Japanese.
Grimoire of the Rift

Buy: - (sell: 1,200 gil)
Use: Cleansing Staff, Excalibur, Nirvana, Onion Sword, Materia Armor, Orb of Minwu
Reward: Foodstuffs: Aroma x2 (once), Sleepless Nights x3 (once), A Request (once)
Type: Philtre, Rank: ★★
Description: Drinking this tonic gives the imbiber temporary superhuman strength. Use caution: an overdose is fatal.
Final Fantasy Tactics S

Buy: - (sell: 200 gil)
Use: Staff
Obtain: Duchy of Yug Nard/Swampland Ruins lv30+
Description: An uncommon substance
Category: Item