Give No Ground

Target creature gets +2/+6 until end of turn and can block any number of creatures this turn.

Ironfist Crusher

This creature can block any number of creatures.
Morph {3}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Avatar of Hope

If you have 3 or less life, this spell costs {6} less to cast.
Flying
This creature can block any number of creatures.

Entangler

Enchant creature
Enchanted creature can block any number of creatures.

Palace Guard

This creature can block any number of creatures.

Blaze of Glory

Cast this spell only during combat before blockers are declared.
Target creature defending player controls can block any number of creatures this turn. It blocks each attacking creature this turn if able.

Wall of Glare

Defender (This creature can't attack.)
Wall of Glare can block any number of creatures.

Valor Made Real

Target creature can block any number of creatures this turn.

Guardian of the Gateless

Flying
This creature can block any number of creatures.
Whenever this creature blocks, it gets +1/+1 until end of turn for each creature it's blocking.

Thoughtweft Trio

First strike, vigilance
Champion a Kithkin (When this enters, sacrifice it unless you exile another Kithkin you control. When this leaves the battlefield, that card returns to the battlefield.)
This creature can block any number of creatures.