Jin-Gitaxias, Core Augur

First strike Noncreature spells cost 1 more to cast.

Creature spells you cast with power 4 or greater cost 2 less to cast. Whenever Goreclaw attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn.

First strike Noncreature spells cost 1 more to cast.

When Kroxa enters, sacrifice it unless it escaped. Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape—BBRR, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Lifelink At the beginning of each end step, if you gained life this turn, distribute up to that many +1/+1 counters among any number of other target creatures.

Shanna can't be the target of abilities your opponents control. Shanna gets +1/+1 for each creature you control.

Trample Whenever you tap a land for mana, add one mana of any type that land produced. Whenever an opponent taps a land for mana, that land doesn't untap during its controller's next untap step.