Trample
As long as you control another creature, prevent all damage that would be dealt to Bronze Horse by spells that target it.
, : Untap target attacking creature you control. Prevent all combat damage that would be dealt to and dealt by that creature this turn.
: Untap Horseshoe Crab.
Target creature gets +2/+2 and gains horsemanship. (It can't be blocked except by creatures with horsemanship. This effect lasts indefinitely.)
Workhorse enters the battlefield with four +1/+1 counters on it.
Remove a +1/+1 counter from Workhorse: Add to your mana pool.
Islandwalk
to your mana pool.