Your collection syncs straight into your deck building, so the cards you own automatically shape what you can build
On the other hand, a massive 32 rares from Core Set 2019 fall into the bulk or semi-bulk categories, which means just over 60% of your non-mythic Core Set 2019 booster packs will be complete busts, with a throwaway bulk rare
the tougher part is how to really make the activated ability worth it
This is likely due to Greninja's popularity as a Pokemon and the fact its artwork connects with Froakie and Frogadier's Illustration Rares
Corrosive Mentor Foil $44.85 Price History Your Inventory Sign in to see your inventory Data Reserved List No All Time High $16.63 All Time Low $0.33 Foil Multiplier 5.67x Spread 62.8% Buy List $2.94 Nonfoil Daily -$0.09 -1% Weekly -$0.14 -2% Monthly -$0.92 -10% Foil Daily -$0.01 +0% Weekly $5.62 +14% Monthly -$5.14 -10% Other printings This is the only printing of the card Found In This print Corrosive Mentor Creature - Elemental Rogue Black creatures you control have wither
The 1st edition in Spanish is, in my experience, by far the hardest one to find in this set