Yamamoto, Captain 1

Flying, First Strike, Menace, Haste
Jokaku Enjo{2}{r}— Choose one creature an
opponent controls it becomes tapped and does
not untap during the owners untap phase. You
may keep this effect going by paying {r} during
your upkeep phase.
Landfall: Taimatsu—Deal {x}damage to target
opponent where X is equal to the number of Mountain and Plains basic land cards you control.