Casual Initiative Tempo

This deck aims to play a few unblockable creatures, take the initiative and keep taking it back every turn to get through the Undercity.

Gameplan:

Rilsa can turn your tiny unblockable creatures into a real threat after you complete the dungeon and before then can act as a great blocker to stop your opponents trying to take back the Initiative allowing you to snowball value.
She gives your opponents a difficult choice, between removing Rilsa, allowing you to retrigger the Initiative by replaying her, or letting you keep the initiative and keep furthering your gameplan.

Subthemes:

There's a small counter subtheme with cards like Thrummingbird, counters from some rooms in the dungeon and creatures like Gluttonous Slug, Saiba Cryptomancer and Cloudfin Raptor.
There are some creatures with Ninjutsu to bounce your initiative creatures or other good ETB effects which can often help you get through the dungeon faster.
Trinket Mage can pick up some Prying Blade for early ramp, Aether Spellbomb for some removal or in the later game Viridian Longbow to use Rilsa's deathtouch to pick off any threat.

Winning:

Winning will come slowly as there's no combo or big play that will win the game all in one turn, but buffing up your unblockable creatures is a very reliable way to get you there, especially with repeated trips through the Undercity..