That delay is crucial for a number of reasons
Because Alpine Watchdog doesnt have flash, I can only cast it during my main phases, the only times I can cast sorceries
Suddenly, all that discard, land destruction, and card drawing they've used has backfired, as they find themselves at a low life due to Necropotence, with two (or less) lands in play, no creatures, and no cards in hand
Usually players will have to choose another card with the same character to use Shift, but in the case of Chip n Dale, Recovery Rangers, it can be used to Shift a Chip or a Dale card, which makes it quite a bit more versatile than a normal Floodborn card
The front side already earns its keep, a 2/3 deathtouch for one mana answers pretty much any creature