Terra EX [Hidden Trials]

EX BURST When Terra enters the field or is put from the field into the Break Zone, choose 1 Summon in your Break Zone. Add it to your hand. During this turn, the cost required to cast your next Summon is reduced by 2 (it cannot become 0).

All Summons in your Break Zone cannot be removed from the game by your opponent's Summons or abilities.