Ive been trimming tutors from my decks lately, but clearly Worldy Tutor, Vampiric Tutor, Eladamris Call, Demonic Tutor and so forth can all boost your consistency in high powered pods
To help balance this god-like planeswalker a bit, he does have the slightly awkward triple black mana in his casting cost, but in a committed deck, thats not that hard to hit
Youre also helped by security effects that trigger when your opponent attacks, which makes you do something
You can only use this effect of "Whitefish Salvage" once per turn
It is nice if it sets up some other synergies but just using it for card quality is still good
The easiest way to distinguish them is by looking at a combination of their copyright dates and holofoil patterns