Underground River [Fifth Edition] Single Card Caster gains 1 life for

Caster gains 1 life for each damage inflicted

Number: CORE-EN076 Rarity: Secret Rare Attribute Monster Type/Card Type: TRAP /Trap Card Description: When an opponent's monster declares an attack: Return all face-up Attack Position monsters your opponent controls to the hand

Number: HL2-EN004 Rarity: Ultra Rare Attribute Monster Type/Card Type: SPELL /Normal Spell Level: 0 A / D: 0 / 0 Description: Destroy all Spell and Trap Cards on the field

Any damage done to Aerodactyl by attacks from your opponent's Pokemon is reduced by 10 for each React Energy card attached to Aerodactyl (after applying Weakness and Resistance)

Number: TAEV-EN063 Rarity: Ultimate Rare Attribute Monster Type/Card Type: TRAP /Trap Card Description: Activate only when your opponent's monster declares an attack targeting a face-up "Elemental Hero" monster you control

Underground River [Fifth Edition] Single Card Caster gains 1 life forRarity: R Card Type: Land Description: T: Add one colorless mana to your mana pool. T: Add U or B to your mana pool. Underground River deals 1 damage to you.