Triassic Egg [Legends] Vanguard Activated abilities of sources with

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities

then put all cards exiled with Knowledge Vault into their owner's hand

Set: From the Vault: Realms Type: Legendary Land Rarity: Mythic Each land is a Swamp in addition to its other land types

Set: Arabian Nights Type: Enchantment Rarity: Rare Cost: {G} At the beginning of your upkeep

Set: Friday Night Magic 2011 Type: Artifact Rarity: Rare Cost: {0} Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell

Triassic Egg [Legends] Vanguard Activated abilities of sources withSet: Legends Type: Artifact Rarity: Rare Cost: {4} {3}, {T}: Put a hatchling counter on Triassic Egg. Sacrifice Triassic Egg: Choose one. Activate only if there are two or more hatchling counters on Triassic Egg. You may put a creature card from your hand onto the battlefield. Return target creature card from your graveyard to the battlefield.