Xeno and Anker, Tag-Team

Double Strike.

Whenever you cast a Pureblood spell, if you tap a Pureblood you control, that spell gains Storm {w}{w}{r}.

This card's toughness is 1 + 1 for every 2 Pureblood
spells in your gy.

{w}{r}, {t}: Copy target Pureblood spell that is in
your gy.