({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

This land enters tapped. {T}: Add {W} or {U}. {1}{W}{U}: Until end of turn, this land becomes a 2/3 white and blue Bird creature with flying. It's still a land. Whenever this land attacks, create a Map token.

({T}: Add {R} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped unless you control two or fewer other lands. {T}: Add {W} or {U}.

{T}: Add {C}. {T}: Add {U} or {R}. This land deals 1 damage to you.

This land enters tapped unless you control two or fewer other lands. {T}: Add {U} or {R}.

This land enters tapped unless it's your first, second, or third turn of the game. {T}: Add {C}. {T}, Pay 1 life: Add one mana of any color.

Enchant artifact Enchanted artifact is a creature with base power and toughness 5/5 in addition to its other types.

When this creature enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

When this creature enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

As an additional cost to cast this spell, sacrifice an artifact or creature. Ward {2} When this artifact enters, exile target artifact or creature an opponent controls until this artifact leaves the battlefield.

Flash Vigilance When this creature enters, tap target creature an opponent controls and put a stun counter on it. {1}{U}, {T}: Shuffle this creature and target creature with a stun counter on it into their owners' libraries.

Enchant creature you control When this Aura enters, exile target nonland permanent an opponent controls until this Aura leaves the battlefield. Enchanted creature gets +1/+0 and has lifelink and ward {2}.

As an additional cost to cast this spell, sacrifice an artifact. Shrapnel Blast deals 5 damage to any target.

When this Case enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") To solve — You control three or more artifacts. (If unsolved, solve at the beginning of your end step.) Solved — {2}{U}, Sacrifice this Case: Put four +1/+1 counters on target noncreature artifact. It becomes a 0/0 Bird creature with flying in addition to its other types.