Acrobat Verdi has a trick to put a grade 3 into your hand.
V-BT10/013 RRR アクロバット・ベルディ Acrobat Verdi
Grade 1 / Normal Unit / Dark Zone – Spike Brothers – Ogre
CONT (VC/RC) If you called a rear-guard by an effect during this turn, this unit gets Power+5000.
AUTO (VC/RC) When placed from hand, look at five cards from the top of your deck, reveal up to one grade 3 from among them and put it into your hand, and if you put a card, discard a card from your hand.
V-BT10/040 R ブリーチ・スパート Breach Spurt
Grade 2 / Normal Unit / Dark Zone – Spike Brothers – Demon
AUTO (RC) When it attacks a vanguard, COST [Put a normal unit from your drop zone on the bottom of your deck], and until end of this battle, your opponent must intercept. At the end of this battle, put this unit into your soul, and draw a card.
V-BT10/075 C メカ・レフリー Mecha Referee
Grade 1 / Normal Unit / Dark Zone – Spike Brothers – Workeroid