A Little Demonic Method, Valefr (RRR)

[AUTO]:When this unit is placed on (RC), you may [Soul-Charge 1]. Then, [COST][Counter-Blast 1], and draw a card.
[AUTO](RC):When this unit attacks a grade 3 or greater unit, if you have a card in your soul with the same card name as your vanguard, this unit gets [Power] +5000 until end of that battle.