If your opponent mills your entire deck, you usually have until your next draw step to solve that problem somehow, whether that means winning the game yourself or finding a way to put cards back into your library
Noise Marine screams Peasant Cube staple, and Im looking forward to cascading into Bloodbraid Elf and really going off
This card is not a huge commitment towards red, compared to Liliana for black, reason why drafters do not first pick liliana imo, despite her very high raw power (a turn one ritual into liliana is often game)
But hes also easier to slot into a list than Larrus and will often be good enough value being a free threat from your sideboard
In conclusion, blue ramp cards serve multiple strategic purposes, from accelerating mana for high-cost spells to maintaining card advantage and control
Once all of the time counters are removed, it reveals itself as the horrifying creature you always knew it could be