Rev, Tithe Extractor

Whenever a player casts a spell they don't own, that player creates a Treasure token.

Whenever a creature deals combat damage to one of your opponents, its controller looks at the top card of that opponent's library and exiles it face down. They may play that card for as long as it remains exiled. Mana of any type can be spent to cast a spell this way.

When Ramirez DePietro enters, you lose 2 life and create two Treasure tokens.

Whenever one or more Pirates you control deal combat damage to a player, exile the top card of that player's library. You may cast that card for as long as it remains exiled.

Spells you cast but don't own cost less to cast.

Whenever one or more creatures you control deal combat damage to a player, look at the top card of that player's library, then exile it face down. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

At the beginning of your end step, create a Treasure token for each tapped Assassin, Pirate, and/or Vehicle you control.

Whenever a Vehicle you control deals combat damage to a player, look at the top card of that player's library, then exile it face down. You may play that card for as long as it remains exiled.

When The Magic Bandit deals combat damage to an opponent, exile the top card of that player's library. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

Whenever you cast a spell or play a land you don't own, copy it.

Whenever Mastermind Plum attacks, exile up to one target card from a graveyard. If an artifact card was exiled this way, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Whenever you cast a spell, if mana from a Treasure was spent to cast it, you draw a card and you lose 1 life.