Regalia of Frost, Jotun (G-BT14/021EN)

[CONT]: Sentinel [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 with "Regalia" in its card name, and it cannot be hit until end of that battle. [AUTO] Generation Break 1 :[Bind this card face up] When this card is put from your soul into the drop zone during your turn, if you have a vanguard with "Regalia" in its card name, you may pay the cost. If you do, choose a "Regalia of Frost, Jotun" from your drop zone, and put it into your hand.