Entourage of Trest

Entourage of Trest checks if you're the monarch only as blockers are declared. If it blocks two attacking creatures, another player becoming the monarch won't change or undo that block.

If a creature blocks two creatures, its combat damage is assigned to those creatures and vice versa using the same rules as if one creature were blocked by two creatures.

If the triggered ability that causes the monarch to draw a card goes on the stack and a different player becomes the monarch before that ability resolves, the first player will still draw the card.