Minotaur Cliffwatcher

Trample
When Minotaur Cliffwatcher enters the battlefield, choose forestwalk, mountainwalk or plainswalk. Minotaur creatures you control have the chosen ability.
Whenever a Minotaur creature you control attacks, you may pay {2}{r}. If you do, Minotaur creatures you control get +1/+0 and gain your choice of first strike, menace or trample until
end of turn.