Sparrow, Champion of Briars

Briot,{g}{g}{t}: create X 2/2 Green Briar Tokens where X is the number of Briar cards in both players graveyards or exile piles.
If a Nezvor, Mater at Arms under your control dies, Sparrow Champion of Briars gains deathtouch and indestructible until end of turn and fights targets creatures opponent controls.
"indeterminate cry of Briar indignation"