Keyword: Imprint

Imprint — When Extraplanar Lens enters the battlefield, you may exile target land you control.
Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Imprint — When Soul Foundry enters the battlefield, you may exile a creature card from your hand.
, : Create a token that’s a copy of the exiled card. X is the converted mana cost of that card.

Imprint — When Thought Prison enters the battlefield, you may have target player reveal their hand. If you do, choose a nonland card from it and exile that card.
Whenever a player casts a spell that shares a color or converted mana cost with the exiled card, Thought Prison deals 2 damage to that player.

Imprint — When Isochron Scepter enters the battlefield, you may exile an instant card with converted mana cost 2 or less from your hand.
, : You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.
: Add one mana of any of the exiled card’s colors.

Imprint — When Spellweaver Helix enters the battlefield, you may exile two target sorcery cards from a single graveyard.
Whenever a player casts a card, if it has the same name as one of the cards exiled with Spellweaver Helix, you may copy the other. If you do, you may cast the copy without paying its mana cost.

Imprint — When Mourner’s Shield enters the battlefield, you may exile target card from a graveyard.
, : Prevent all damage that would be dealt this turn by a source of your choice that shares a color with the exiled card.