By the end of Caw Blade's reign in Standard, there were GPs where Jace, the Mind Sculptor was in 88% of day two decks and Stoneforge Mystic was in 70%
Most groups will allow you to ask questions and share your collection
But fortunately, you also have Wasteland Scorpion on the battlefield
Just cast by itself (with entwine), it can quadruple the damage dealt by your attacking creatureswhich is good, since copying it with Riku does almost nothing: double strike doesn't stack with itself, and Riku won't be able to attack in anything but one additional combat step, since he won't be untapped after attacking again
Since you choose what you discard, the card finds its way into reanimator decks too
Lugia (also known as 'Crystal Lugia', due to its Crystal Type ability) is the most expensive card from Aquapolis, coming in at around $490-$500