Bulwark Ox (Borderless - Gold Foil) AVR You may put a land

You may put a land card from among them into your hand

then put any number of them into your graveyard and the rest on top of your library in any order

there is an additional combat phase followed by an additional main phase

If that mana is spent on an instant or sorcery spell

look at the top six cards of your library

Bulwark Ox (Borderless - Gold Foil) AVR You may put a landWhenever this creature attacks while saddled, put a +1 +1 counter on target creature. Sacrifice this creature: Creatures you control with counters on them gain hexproof and indestructible until end of turn. Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)