all meld cards mtg Mechanics of Magic: TR&CI 59: Meld Deep Dive

Ability words could be tied to a triggered ability, like landfall which is an ability word thats always tied to a triggered ability that triggers when a land enters the battlefield under your control

You don't lose anything if your opponents choose to discard at the end of their turn, but it's better for you if they choose to keep their card and give you the option to drop a big Badnik onto the table

Underground Sea Alpha Price: $17,500 A Dual Land that pairs black and blue mana, Underground Sea lets you tap for either color at no additional cost

Finally, the level three ability, which costs a further four mana, lets you put a +1/+1 counter on each creature any time you cast a spell