Onderzeeboot
Ecstatic Orb
You mean like an almost always better Manic Vandal right?
You can cast it for 2 instead of 3.
You can also pay the full 3 mana like Vandal and then they have the same ETB effect.
You can also cast it for 1 for a removal. And then much later get a small blocker/attacker
Only upside to Vandal is the 1 extra toughness. This is a deal but not a big deal. And it doesn’t outweigh the tempo you can choose at 2 mana.
2 toughness vs 1 toughness is relevant, but it's also the difference between and . Of course casting it over turns is a real thing, but still. I think I'ld rather play Hearth Kami.