The newly formed eagle immediately strikes out at the spider in front of him, trying to match the moves of the real one right next to him.
Talon 1: 1d20 + 3 ⇒ (1) + 3 = 4 Damage, P/S: 1d4 ⇒ 1
Talon 2: 1d20 + 3 ⇒ (18) + 3 = 21 Damage, P/S: 1d4 ⇒ 2
Bite: 1d20 + 3 ⇒ (8) + 3 = 11 Damage, B/P/S: 1d4 ⇒ 1
If the creature has made a will save vs. the illusion, then these only deal 1/2 damage