Borderland Behemoth

Trample
Borderland Behemoth gets +4/+4 for each other Giant you control.

Bearer of the Heavens

When Bearer of the Heavens dies, destroy all permanents at the beginning of the next end step.

Giant spells you cast cost {2} less to cast.

If a Giant source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Other Giant creatures you control get +2/+2 and have trample.

When Giant Harbinger enters, you may search your library for a Giant card, reveal it, then shuffle and put that card on top.

As Belbe's Portal enters, choose a creature type.
{3}, {T}: You may put a creature card of the chosen type from your hand onto the battlefield.