Issei Hyoudou

Haste, Trample
Boost:
(Pay{r}: Issei gains +1/+1 until end of turn.)
Juggernaut Drive:
(Pay{5}{r}: Double the effects of the current boost)
Boost! Boost! Boost! Boost! Boost! Boost! Boost!
Boost! Boost! Boost! Boost! Boost! Boost! Boost!
Boost! Boost! Boost! Boost! Boost! Boost!