At the beginning of each player's upkeep, that player may put a +1/+1 counter on target creature of their choice.

Flash

Domain — This spell costs less to cast for each basic land type among lands you control.

When Leyline Binding enters, exile target nonland permanent an opponent controls until Leyline Binding leaves the battlefield.

Enchant legendary creature

Enchanted creature has ward and ": Add five mana in any combination of colors. Spend this mana only to cast spells."

If Leyline of Abundance is in your opening hand, you may begin the game with it on the battlefield.

Whenever you tap a creature for mana, add an additional .

: Put a +1/+1 counter on each creature you control.

If Leyline of Combustion is in your opening hand, you may begin the game with it on the battlefield.

Whenever you and/or at least one permanent you control becomes the target of a spell or ability an opponent controls, Leyline of Combustion deals 2 damage to that player.

If Leyline of Lifeforce is in your opening hand, you may begin the game with it on the battlefield.

Creature spells can't be countered.

If Leyline of Mutation is in your opening hand, you may begin the game with it on the battlefield.

You may pay rather than pay the mana cost for spells you cast.

If Leyline of Resonance is in your opening hand, you may begin the game with it on the battlefield.

Whenever you cast an instant or sorcery spell that targets only a single creature you control, copy that spell. You may choose new targets for the copy.

If Leyline of Singularity is in your opening hand, you may begin the game with it on the battlefield.

All nonland permanents are legendary.

If Leyline of the Meek is in your opening hand, you may begin the game with it on the battlefield.

Creature tokens get +1/+1.

If Leyline of Transformation is in your opening hand, you may begin the game with it on the battlefield.

As Leyline of Transformation enters, choose a creature type.

Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

When Leyline Phantom deals combat damage, return it to its owner's hand. (Return it only if it survived combat.)

At the beginning of your upkeep, you may put a permanent card from your hand onto the battlefield.

Ral, Leyline Prodigy enters with an additional loyalty counter on him for each instant and sorcery spell you've cast this turn.

+1: Until your next turn, instant and sorcery spells you cast cost less to cast.

−2: Ral deals 2 damage divided as you choose among one or two targets. Draw a card if you control a blue permanent other than Ral.

−8: Exile the top eight cards of your library. You may cast instant and sorcery spells from among them this turn without paying their mana costs.