Simple designs do look subtle and professional, but adding patterns in an elegant way can make your card stand out
The ones that make me look at a card in a completely different light
The big difference is that this one is cheaper, grows its' stats better, and you control which creature to target, and that could be your opponent's
On the surface, milling ten cards in a turn for each of your opponents might not seem like much, but add in a few other unblockable creatures and maybe a few effects that let you steal your opponents high powered creatures to attack with, and suddenly everyone is milling tons of cards each turn
Ive used Solitude to stop combo creatures, break up lethal attacks, and remove commanders at the worst possible moment for their controller
With reanimation spells and a sacrifice outlet, you can also take more control of the ramp and land tutoring, keeping you on pace with the greediest ramp players