Fossil Excavator Probably the best Supporter printed for decks that run fossils or fossil Pokmon
Tigra, Feline Fury would fit best in a green-based lifegain or +1/+1 counter deck, especially in Commander where repeatable life gain (Soul Wardenstyle effects, lifelink creatures, or cards like Wellwisher, Prosperous Innkeeper, or Heliod, Sun-Crowned) can quickly stack counters and turn Tigra into a large trampling threat
Unfortunately, this is one of only two Kraul cards ever made, so they never became the major presence the Nantuko were
However, demand quickly spiralled out of control, with some fans buying dozens of meals solely for the cards and discarding the food
Arrow Legacys First Mate can work in aggro decks