Bear with Set's Mechanic

Nov 12, 2019

As your first combat phase ends during your turn, if one or more creatures you control have aggressive, you have another combat phase before your second main phase. This is called the aggressive combat phase.

Nov 12, 2019

Creatures without aggressive can't attack during an aggressive combat phase.

Nov 12, 2019

If you control no creatures with aggressive as your first combat phase ends, but control one later during your turn, you won't have an aggressive combat phase.