The plays you can make with this creature are HUGE
The spell that my opponent threw away might never have been able to be played
Solitude lets white answer creatures even when shields are down, which makes it one of the most flexible removal tools the color has gained in years
With zero power, he won't be attacking much, but he immediately eliminates your hand size , starts your engine, and has four toughness, enough to avoid dying to Lightning Bolt
However, if a spell or ability allows you to cast a copy of a spell, that spell will be counted for paradox abilities
Some spoiled vampire cards provide benefits when the controlling player sacrifices Blood tokens, easing that cost and likely stoking the minds of deckbuilders everywhere