Atraxa, Grand Unifier - [Showcase] Phyrexia: All Will Be One (ONE) Box Set "The Knowledge Pool knows

"The Knowledge Pool knows

except it's an artifact and it has "{T}: Add {U}

Splice onto Arcane {U} (As you cast an Arcane spell

"Imagine a dove flying through smoke

you may return target artifact card from your graveyard to the battlefield

Atraxa, Grand Unifier - [Showcase] Phyrexia: All Will Be One (ONE) Box Set "The Knowledge Pool knowsFlying, vigilance, deathtouch, lifelink When Atraxa, Grand Unifier enters the battlefield, reveal the top ten cards of your library. For each card type, you may put a card of that type from among the revealed cards into your hand. Put the rest on the bottom of your library in a random order. (Artifact, battle, creature, enchantment, instant, land, planeswalker, and sorcery are card types.)