mtg lorwyn eclipsed collector booster box Magic: The Gathering You may also happen upon borderless reversible shock lands Magic: The Gathering Lorwyn Eclipsed

But I think each of them could have a colored box around their name or card type, and it wouldnt make the cards any less attractive

A lot of balance and care goes into choosing the cost of a card, more than I can express here, but looking for similar effects on existing Magic cards can give you an idea of a fair costfor example, a ramp spell that puts two lands into play ought to cost 4 mana, per Explosive Vegetation

The reveal lands enter play untapped if you can reveal a card with a certain basic land type from your hand

Make sure you know the difference in foiling

1 Displacer Kitten This flicker kitten made waves when it was first revealed in Commander Legends: Battle For Baldur's Gate, and it still commands an impressive over $10 price tag