edhseer Commander synergy, explained
Enchantment
Mana cost: {2}{W}{B}
As this enchantment enters, choose Abzan or Mardu.
Abzan — At the beginning of your end step, put a +1/+1 counter on each creature you control.
triggered — puts a counter on it
Mardu — At the beginning of your end step, if a creature died under your control this turn, each opponent sacrifices a creature of their choice.
triggered —
Causes: put a counter on a creature, sacrifice a creature, a creature dies.
Cares about: an end step.
a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Barrensteppe Siege is one).
1 other card cares about it too. These are the ones with the most connections.
a creature is sacrificed — 1,741 cards in the game can cause this (Barrensteppe Siege is one).
When a creature is sacrificed thanks to Barrensteppe Siege:
22 other cards care about it too. These are the ones with the most connections.
a creature gets a counter — 2,691 cards in the game can cause this (Barrensteppe Siege is one).
When a creature gets a counter thanks to Barrensteppe Siege:
31 other cards care about it too. These are the ones with the most connections.
a creature in a graveyard — 2,769 cards in the game can cause this (Barrensteppe Siege is one).
Barrensteppe Siege puts cards into the graveyard that:
799 other cards care about it too. These are the ones with the most connections.
a nontoken creature dies — 2,769 cards in the game can cause this (Barrensteppe Siege is one).
When a creature dies thanks to Barrensteppe Siege:
60 other cards care about it too. These are the ones with the most connections.
a creature dies — 2,830 cards in the game can cause this (Barrensteppe Siege is one).
When a creature dies thanks to Barrensteppe Siege:
452 other cards care about it too. These are the ones with the most connections.
an enchantment is cast — 3,673 cards in the game can cause this (Barrensteppe Siege is one).
When Barrensteppe Siege is cast:
262 other cards care about it too. These are the ones with the most connections.
an enchantment enters the battlefield — 3,743 cards in the game can cause this (Barrensteppe Siege is one).
When Barrensteppe Siege enters:
85 other cards care about it too. These are the ones with the most connections.
a card in a graveyard — 7,589 cards in the game can cause this (Barrensteppe Siege is one).
443 other cards care about it too. These are the ones with the most connections.