There are a handful of instants and sorceries with abilities that get better with landfall, but the mechanic mostly appears on enchantments and creatures
I understand why they are both here, particularly the uncommon Entomber
A kindred artifact like Firdoch Core with changeling and thus, the goblin creature type can be grabbed by an effect thats searching for a goblin card (Grub, Storied Matriarch), but it cant be fetched by an effect thats searching for a goblin creature (Muxus, Goblin Grandee)
Then we get to add some further perks to this such as only ever needing one dork with a mere one or more power to crew it making it wildly more likely to actually be viable to crew on any given turn
It is another that requires one of the Arceus cards in play, but if you do have one, you can do 30 damage to your opponent's active Pokmon each turn before you attack
When Were Foils Introduced