Phos, the Lady of Ill Omen

Other Rogues you control get +1/+1.
Ire of Elarion —Whenever one or more Rogues
you control deal combat damage to a player, that player mills a card for each 1 damage dealt to
them. If the player mills at least one creature
card this way, you draw a card. (To mill a card, a
player puts the top card of their library into their
graveyard.)