edhseer Commander synergy, explained
Legendary Creature — Shapeshifter
Mana cost: {U}{U}{B}{B}
Hexproof
Whenever a creature card is put into an opponent's graveyard from anywhere, you may have Lazav become a copy of that card, except its name is Lazav, Dimir Mastermind, it's legendary in addition to its other types, and it has hexproof and this ability.
triggered — copies a permanent
triggered — changes what something is
triggered — grants a keyword
Causes: copy a creature.
Cares about: a creature goes to a graveyard.
put a creature into a graveyard — 1,550 cards in Lazav's colors can cause this.
1,540 other cards cause it too. These are the ones with the most connections.
a creature attacks — 6,258 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind attacks:
63 other cards care about it too. These are the ones with the most connections.
anything attacks — 6,258 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind attacks:
15 other cards care about it too. These are the ones with the most connections.
a creature blocks — 6,258 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind blocks:
4 other cards care about it too. These are the ones with the most connections.
a creature deals combat damage — 6,258 cards in Lazav's colors can cause this (Lazav is one).
98 other cards care about it too. These are the ones with the most connections.
a creature is cast — 6,287 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind is cast:
19 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 6,508 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind enters:
3 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 6,953 cards in Lazav's colors can cause this (Lazav is one).
When Lazav, Dimir Mastermind enters:
60 other cards care about it too. These are the ones with the most connections.