Icetill Explorer's second ability doesn't change the times when you can play those land cards
Id even try to customize your deck to do it
White Playable Cards : In White, the only card I really imagine being truly unplayable is Makindi Stampede
There are newcomers galore here, with tons of stuff to excite counter-lovers, Final Fantasy X fans, and Atraxa fans: Tromell, Seymour's Butler: Tromell wasnt an important enough character to really deserve a card, but Im not ignoring anything that says, proliferate X times, even if theres a condition behind it
Unless you're facing lots of artifacts I'd recommend playing Go for the Throat instead
A 1/4 deathtouch creature is able to attack into most boards since your opponent isnt going to want to trade it off for anything particularly big, so itll be relatively easy to make a token each turn