Wiretapping

When this enchantment enters, if you cast it, shuffle your hand and graveyard into your library, then draw seven cards.

The first spell each player casts during each of their turns may be cast without paying its mana cost.

Enchant instant card in a graveyard

Whenever you cast a sorcery spell, copy the enchanted instant card. You may cast the copy without paying its mana cost. If you do, exile the enchanted card and attach this Aura to another instant card in a graveyard.

When this enchantment enters, exile the top five cards of your library.

Whenever you play a card with the same name as one of the exiled cards, you may put one of those cards with that name into its owner's hand. Then if there are no cards exiled with this enchantment, sacrifice it. If you do, take an extra turn after this one.

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

Whenever Marvo attacks, clash with defending player. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

Whenever you win a clash, draw a card. Then you may cast a spell from your hand with mana value 8 or less without paying its mana cost.

Flying

Whenever this creature deals combat damage to a player, choose a card in your hand. That player guesses whether the card's mana value is greater than 4. If the player guessed wrong, you may cast the card without paying its mana cost.