Veil, Fungal Friend to Petra

Wild Magic Surge — At the beginning of the
combat step, roll a d20.
1-5 | You create a 4/4 green unicorn creature token
with haste. Sacrifice it at the end of combat.
6-10 | Target creature of your choice cannot block or attack this combat.
11-15 | Creatures that block or are blocked by Veil,
Fungal Friend to Petra this combat take 2 damage.
16-20 | Veil, Fungal Friend to Petra gains First
Strike and Reach until end of combat.