Mind Bloom
Mind Bloom is an Act 3 event where a strange entity offers three choices: 'I am War' (fight the Act 1 boss you already defeated and receive its full boss relic reward), 'I am Awake' (upgrade every card in your deck), or 'I am Rich' (gain 999 gold). These are all powerful options without any direct HP cost.
Mind Bloom is generally an excellent event with no wrong answer, though the best choice depends heavily on the current run state. 'I am War' is typically best if you need a specific boss relic and your deck is strong enough to defeat the Act 1 boss again. 'I am Awake' is outstanding for decks with many unupgraded cards, essentially providing the effect of multiple Campfire upgrades. 'I am Rich' enables substantial Act 3 shop purchases or gold-based mechanics. Most experienced players favor 'I am War' for its potential relic value.