Gadwick, the Wizened
{X}{U}{U}{U}
Legendary Creature -- Human Wizard
3/3
When ~this~ enters, draw X cards.
Whenever you cast a blue spell, tap target nonland permanent an opponent controls.
Ojutai, Soul of Winter
{5}{W}{U}
Legendary Creature -- Dragon
5/6
Flying, vigilance
Whenever a Dragon you control attacks, tap target nonland permanent an opponent controls. That permanent doesn't untap during its controller's next untap step.