Rigorous Roar Lion

(Drop):If you have a grade 3 or greater vanguard with "Ezel" in its card name, 3, look at the top seven cards of your deck, choose up to one card with "Ezel" in its card name from among them, reveal it and put it into hand, and return this card to deck and shuffle it. :If you have a grade 3 or greater vanguard with "Ezel" in its card name, this unit gets "Boost". Then, if your opponent's vanguard is grade 3 or greater, this unit gets ":When this unit attacks or boosts, you may have this unit get +5000 until end of that battle. If you do, at the end of that battle, put this unit into soul.".