The major characters like the Fellowship of the Ring, their closest allies, and the major villains like Sauron all get multiple mechanically unique cards to represent them during different parts of their long journeys
If a vehicle deck that touches blue comes about, this probably just goes in
While they dont do anything right away, when one of the infected creatures dies, you get a copy that also gains the Tyranid type
The Vermin Gorger provides us with a small number of life points, the Skirk Prospector with mana, the Goblin Lookout boosts the mob
The 0-loyalty ability can be a finisher if youve already got a wide enough board, which is why I see this Ajani as more of a support piece, personally
Shanna, Purifying Blade is kinda like Well of Lost Dreams if Well was time-gated and on a creature