Whenever Tori D'Avenant attacks, all other attacking creatures you control get +1/+1 until end of turn. Other red attacking creatures you control gain trample until end of turn. Untap each other white attacking creature you control.
Tori is a Boros go-wide aggro commander: build a board of creatures, swing in, and let her attack trigger pump the whole team while untapping your white attackers so they can swing and still block. You apply relentless pressure across multiple turns, racing the table down with evasive, trampling beaters before slower decks set up.
Anthem-on-attack pump plus mass trample makes blocking math miserable for opponents
Untapping white attackers gives pseudo-vigilance to your whole white team, letting you attack everyone and stay defended
Vigilance and trample on a cheap 4-drop body that keeps pressure on
Boros offers excellent equipment, anthems, and extra-combat support
Relies on having a wide board, so wraths and sweepers set you back hard
Effects only trigger when Tori attacks, so removal or chump-blocking her blunts the deck
No built-in card advantage; can run out of gas after a board wipe
Two-color identity lacks easy ramp, recursion, and tutors of green/black