Jewel-embracing Dragon Fang, Drajeweled

:When this card would be rode upon, it is also regarded as "Demonic Jewel Dragon, Drajeweled". :When this unit attacks a vanguard, [ 4 cards with different grades], choose one of your opponent's vanguards, until end of turn, increase or decrease its to 1, and if your opponent's vanguard is grade 3 or greater, this unit gets +1. ( at that time becomes 1, and can increase or decrease afterwards) :If you 4 or more cards at the same time for the cost of your card's ability this turn, this unit gets +5000.