So I know you can divide blockers and attackers
But I was wondering. Does the attacking player decide what creatures he attacks?(after the declare blockers step) Or does the blocking player decide which creatures of their own block the attackers?
Blocker have advantage of choice.
Defending players decide which of his creatures block which attacking creature.
You can have more than one creature blocking a single attack creature, but one blocking creature can only block one attacking creature.
After this is declared, the attacking player decides how an attacking creature allocates its damage among the creatures blocking it.
Eg I have a attacking 2/3 creature, and defending player blocks with 3 1/1s.
As an attacking player, I can choose how my damage is dealt ie I can choose which of 2 1/1s to be dealt lethal damage (in this case, 1 damage).
510.1c rules has the examples...
510.1c: A blocked creature assigns its combat damage to the creatures blocking it. If no creatures are currently blocking it (if, for example, they were destroyed or removed from combat), it assigns no combat damage. If exactly one creature is blocking it, it assigns all its combat damage to that creature. If two or more creatures are blocking it, it assigns its combat damage to those creatures according to the damage assignment order announced for it. This may allow the blocked creature to divide its combat damage. However, it can't assign combat damage to a creature that's blocking it unless, when combat damage assignments are complete, each creature that precedes that blocking creature in its order is assigned lethal damage. When checking for assigned lethal damage, take into account damage already marked on the creature and damage from other creatures that's being assigned during the same combat damage step, but not any abilities or effects that might change the amount of damage that's actually dealt. An amount of damage that's greater than a creature's lethal damage may be assigned to it.
Example: The damage assignment order of an attacking Vastwood Gorger (a 5/6 creature) is Pride Guardian (a 0/3 creature) then Llanowar Elves (a 1/1 creature). Vastwood Gorger can assign 3 damage to the Guardian and 2 damage to the Elves, 4 damage to the Guardian and 1 damage to the Elves, or 5 damage to the Guardian.
Example: The damage assignment order of an attacking Vastwood Gorger (a 5/6 creature) is Pride Guardian (a 0/3 creature) then Llanowar Elves (a 1/1 creature). During the declare blockers step, the defending player casts Giant Growth targeting Pride Guardian, which gives it +3/+3 until end of turn. Vastwood Gorger must assign its 5 damage to the Guardian.
Example: The damage assignment order of an attacking Vastwood Gorger (a 5/6 creature) is Pride Guardian (a 0/3 creature) then Llanowar Elves (a 1/1 creature). During the declare blockers step, the defending player casts Mending Hands targeting Pride Guardian, which prevents the next 4 damage that would be dealt to it. Vastwood Gorger can assign 3 damage to the Guardian and 2 damage to the Elves, 4 damage to the Guardian and 1 damage to the Elves, or 5 damage to the Guardian.
Example: The damage assignment order of an attacking Enormous Baloth (a 7/7 creature) is Trained Armodon (a 3/3 creature) that already has 2 damage marked on it, then Foriysian Brigade (a 2/4 creature that can block an additional creature), then Silverback Ape (a 5/5 creature). The damage assignment order of an attacking Durkwood Boars (a 4/4 creature) is the same Foriysian Brigade, then Goblin Piker (a 2/1 creature). Among other possibilities, the active player may have the Baloth assign 1 damage to the Armodon, 1 damage to the Brigade, and 5 damage to the Ape, and have the Boars assign 3 damage to the Brigade and 1 damage to the Piker.
How do I copy that out...
So you can choose how your damage is allocated among the blocking monsters. Got it.
Thanks!
Attacker choose damage assignment order.