Gigantes [CP04-EN015] Common Water [+10] during your End Phase: You

during your End Phase: You can destroy all monsters on the field with a Wedge Counter

You can send "Umi" you control to the Graveyard to send all cards in both players' hands and on the field to the Graveyard

and add that card to your hand

Set: Star Pack ARC-V Card type: Effect Monster Rarity: Common Attack: 1800 Defense: 1500 This card gains 500 ATK for each "Lava Battleguard" you control

and after that

Gigantes [CP04-EN015] Common Water [+10] during your End Phase: YouSet: Champion Pack 4 Card type: Effect Monster Rarity: Common Attack: 1900 Defense: 1300 This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing from play 1 EARTH monster in your Graveyard. When this card is destroyed by battle and sent to the Graveyard, destroy all Spell and Trap Cards on the field.