Cadric, Soul Kindler is a rare Legendary Creature — Dwarf Wizard card from Dominaria United Commander (DMC), collector number 10. Current market price: $16.20, TCGplayer market prices via Scryfall.
The "legend rule" doesn't apply to tokens you control. Whenever another nontoken legendary permanent you control enters, you may pay {1}. If you do, create a token that's a copy of it. That token gains haste. Sacrifice it at the beginning of the next end step.