Hope Keeper (G-BT06/012EN) [Transcension of Blade & Blossom]

[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 up to one of your vanguards that is being attacked, and that unit cannot be hit until end of that battle. [AUTO] Generation Break 1 Brave (This ability is active when you have three or less cards in your hand) :When this unit is placed on (RC), until end of turn, this unit gets [Power]+2000, and"[AUTO](RC):[Counter Blast (1)] At the end of your turn, you may pay the cost. If you do, return this unit to your hand.".