As an additional cost to cast this spell, sacrifice a creature.

Enchant creature

You control enchanted creature.

Enchanted creature gets +1/+1.

As an additional cost to cast this spell, sacrifice an artifact.

Create two tapped Powerstone tokens. If the sacrificed artifact was legendary, draw a card. (The tokens are artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")

This spell costs less to cast if you control a Human creature and a non-Human creature.

Draw two cards.

As an additional cost to cast this spell, exile a creature card from your graveyard.

This spell costs less to cast if you control a creature with flying.

Draw two cards.

As an additional cost to cast this spell, exile three creature cards from your graveyard.

Flying

You may cast this card from your graveyard.

This spell costs less to cast if you control two or more legendary creatures.

Scry 2, then draw two cards.

As an additional cost to cast this spell, sacrifice an artifact.

Search your library for an artifact card, put that card onto the battlefield, then shuffle.

This spell costs less to cast if you've committed a crime this turn. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Draw two cards.

As an additional cost to cast this spell, exile a creature card from your graveyard.

Flying

This spell costs less to cast if you control an Otter.

Draw two cards.

Draw three cards. You may play an additional land this turn.

Draw three cards.

Adamant — If at least three blue mana was spent to cast this spell, scry 3.

This spell costs less to cast if you control a Wizard.

Draw three cards.

Draw three cards. Then discard two cards unless you discard a creature card.

As an additional cost to cast this spell, exile a creature card from your graveyard.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

As an additional cost to cast this spell, discard X cards.

Target player draws X cards. Channeled Force deals X damage to up to one target creature or planeswalker.

This spell costs less to cast if you've cast another spell this turn.

Draw three cards, then discard a card.