Battle Screech [Phyrexia: All Will Be One Commander] Ranger;Assassin then draws as many cards

then draws as many cards as they discarded this way

If a permanent entering the battlefield causes a triggered ability of a permanent you control to trigger

And I'd do it again

Set: Battlebond Type: Creature — Human Wizard Rarity: Uncommon Cost: {2}{U} {T}: Target player draws a card

[When Attacking] [Once Per Turn] By trashing the top card of your security stack

Battle Screech [Phyrexia: All Will Be One Commander] Ranger;Assassin then draws as many cardsSet: Phyrexia: All Will Be One Commander Type: Sorcery Rarity: Uncommon Cost: {2}{W}{W} Create two 1 1 white Bird creature tokens with flying. FlashbackTap three untapped white creatures you control. (You may cast this card from your graveyard for its flashback cost. Then exile it.)