Trinisphere Aetherdrift It's a Phyrexian in addition

It's a Phyrexian in addition to its other types

or Dragon creature card from your hand onto the battlefield tapped and attacking that opponent

{7}: If you both own and control Urza

Return Toralf's Hammer to its owner's hand

Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card

Trinisphere Aetherdrift It's a Phyrexian in additionAs long as this artifact is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)