Battle Monk of Water Scales, Ryuutou

[AUTO](RC):When this unit boosts a vanguard, if your opponent's vanguard is grade 3 or greater, this unit gets [Power]+5000 until end of that battle. [AUTO](RC):When the attack this unit boosted hits, [COST][retire this unit], and [Counter-Charge 1]. [AUTO](RC):At the end of the battle this unit boosted, [COST][Counter-Blast 1] & retire this unit], search your deck for up to one card with the same card name as your vanguard, reveal it and put it into hand, and shuffle the deck.