Tishana's Tidebinder's triggered ability checks to see if the source of the ability is an artifact, creature, or planeswalker as it resolves
Full Art, Borderless Ugin, the Spirit Dragon Sorry, but planeswalker frames are ugly
For sheer card drawing power, theres Urzas Blueprints to draw a card for no mana, Mercurial Chemister to draw two cards for one mana, and Nin, the Pain Artist to potentially draw lots of cards
Savage Knuckleblade Between Anafenza, the Foremost and Savage Knuckleblade, Wizards is really exploring how pushed they can make a three-mana creature
You may cast that card without paying its mana cost if the resulting spell's mana value is less than or equal to N
With that said, heres my opinion on whether getting a sealed booster box is right for you