Instead of stopping, you rationalize spending moreIve already put in this much, might as well go all in. This is exactly how gamblers spiral deeper into their addiction, and its why Pokmon cards can be a dangerous hobby if not approached with discipline
Meld isnt the only returning mechanic in The Brothers War, as unearth is also back
Im looking at you Krenko's Buzzcrusher)
Copying a hasty 5/5 of any variety is very strong
Having it on a stick is greatif you dont need to sweep out the weenies, it can still swing, block, and sacrifice to deal an extra 2 to finish off a creature damaged by something else (perhaps from combat)
On the flip side, this also means that its a crowded and still-evolving market