The Holon Legacy font is just about dead on perfect, but the Poke Ball font is a little bit off and most people that are experienced with the cards will pick up on that difference with little effort
Whenever Klauth attacks, add X mana in any combination of colors, where X is the total power of attacking creatures
For portfolio-style value tracking Collectr is the strongest alternative, and the TCGplayer app is the one to use for buying and selling
The Shadow keyword ability comes all the way from the Tempest block released in 1997, and its reminder text reads, This creature can block or be blocked only by creatures with shadow. Shadow later returned in Time Spiral
Its strong, and like most expensive spells needs to be evaluated in the knowledge that ramping artifacts to get to higher mana quantities is easier than doing it playing any color, barring perhaps green
Collectibles are incredibly volatile spaces to invest in, as anyone who was collecting comics in the 90s can tell you