Reviving Vapors [Invasion] World Magic Cup Qualifiers ' but I cannot

' but I cannot

Set: Guilds of Ravnica Guild Kit Type: Legendary Creature — Shapeshifter Rarity: Mythic Cost: {U}{U}{B}{B} Hexproof

Set: Exodus Type: Creature — Fish Rarity: Common Cost: {1}{U} At the beginning of your upkeep

Set: Starter 1999 Type: Creature — Zombie Rarity: Uncommon Cost: {3}{B} When Gravedigger enters the battlefield

"To this day

Reviving Vapors [Invasion] World Magic Cup Qualifiers ' but I cannotSet: Invasion Type: Instant Rarity: Uncommon Cost: {2}{W}{U} Reveal the top three cards of your library and put one of them into your hand. You gain life equal to that card's mana value. Put all other cards revealed this way into your graveyard.