edhseer Commander synergy, explained
Enchantment
Mana cost: {2}{R}{R}
If this card 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.
triggered — copies a spell
Causes: copy a spell.
Cares about: an instant is cast, a sorcery is cast.
a spell is copied — 122 cards in the game can cause this (Leyline of Resonance is one).
When Leyline of Resonance is copied:
an enchantment is cast — 3,673 cards in the game can cause this (Leyline of Resonance is one).
When Leyline of Resonance is cast:
255 other cards care about it too. These are the ones with the most connections.
a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Leyline of Resonance is one).
an enchantment enters the battlefield — 3,743 cards in the game can cause this (Leyline of Resonance is one).
When Leyline of Resonance enters:
59 other cards care about it too. These are the ones with the most connections.
cast an instant — 3,931 cards in the game can cause this.
3,921 other cards cause it too. These are the ones with the most connections.