in magic is blocking one on one or can many creatures block one

[NIKTER]

In mtg when enemy creatures attack you do you choose one creature to block each or can two creatures block same creature

[DatAsh]

You may choose as many blockers as you wish unless a card says otherwise.

[NIKTER]

Ok thanks how about the other way round can one of my creatures block many enemies?

[Kenji]

Under normal circumstances? No.

Each of your blocking creatures can only block one creature, unless it has an ability that says otherwise. For example:

Avatar of Hope
Palace Guard
Thoughtweft Trio
Valor Made Real