Cephalid Coliseum [From the Vault: Realms] Chronicles If an opponent would begin

If an opponent would begin an extra turn

Set: Zendikar Type: Creature — Snake Mythic Cost: {1}{G} Landfall — Whenever a land enters the battlefield under your control

Set: Limited Edition Alpha Type: Land — Mountain Forest Rare Cost: ({T}: Add {R} or {G}

Set: Champions of Kamigawa Type: Legendary Creature — Goblin Shaman Rare Cost: {2}{R}{R}{R} Haste {T}: Create a token that's a copy of target nonlegendary creature you control

Takeno's Daisho is put into a graveyard from the battlefield

Cephalid Coliseum [From the Vault: Realms] Chronicles If an opponent would beginSet: From the Vault: Realms Type: Land Mythic Cost: {T}: Add {U}. Cephalid Coliseum deals 1 damage to you. Threshold {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate this ability only if seven or more cards are in your graveyard.