Tuskeri Firewalker

2021-02-05 If you don't play the card by the end of the turn, it will remain exiled. Boasting again on a future turn won't let you play that card.
2021-02-05 Playing a card this way follows the normal rules for playing the card. You must pay its costs, and you must follow all applicable timing rules. For example, if the card is a sorcery card, you can cast it only during your main phase while the stack is empty.
2021-02-05 The card you exile with the boast ability is exiled face up.
2021-02-05 Under normal circumstances, you can play a land this way only if you haven't played a land yet that turn.

Card is in preconstructed decks:

mtg.wtf