Stealth Dragon, Genkai [G-TD13/007]  

[AUTO](RC) Generation Break 1 (Active if you have one or more face up G units in total on your (VC) or G zone):[Counter Blast (1) & Soul Blast (1)] When a dominated unit attacks during your turn, if you have a vanguard with “Shiranui” in its card name, you may pay the cost. If you do, draw a card, and this unit gets [Power]+2000 until end of turn.

Stealth Dragon, Utsuroi [G-BT11/020 (RR)+(SP)]  

[AUTO]:[Choose a card from your hand, and discard it] When this unit is placed on (GC) from hand, you may pay the cost. If you do, choose one of your units that is being attacked, and it cannot be hit until end of that battle.
[AUTO](Drop Zone):[Choose one other “Stealth Dragon, Utsuroi” from your drop zone, and put it on the bottom of your deck] When a dominated unit’s attack hits a vanguard during your turn, you may pay the cost. If you do, return this card to your hand.