Even without delirium active, two damage is still enough to take care of your opponent's creatures early in the game before their abilities start spiraling out of control
The whole thing has a How To Train Your Dragon feel to it with players living in a part of the world where, instead of hunting monsters, the characters end up bonding with them
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There are worse 5-drops to play, so it might be worth running Ultimecia on the off chance you can pay the cost, but I dont think Id go out of my way to pick it in a draft
Olivia's Attendants If you want to create lots of Blood tokens, theres no card better than Olivia's Attendants
Oko promised Rakdos that there was new excitement to be had on Thunder Junction, so Rakdos agreed to temporarily play along