Ajani Steadfast is a mythic Legendary Planeswalker — Ajani card from Commander Masters (CMM), collector number 813. Current market price: $2.37, TCGplayer market prices via Scryfall.
+1: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink. −2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control. −7: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."