The Bee

Shield 4(This enters the battlefield with 4 S-counters.
As long as this has 4 or more S-counters, it's full. If
you'd be dealt damage, prevent X of that damage,
where X is the number of S-counters on this.
Whenever damage is prevented this way, remove that
many S-counters from this. At the beginning of your
end step, if this isn't full, put an S-counter on this.)
Whenever this is full and a red source you control
would deal damage, it deals double that damage
instead, then remove 2 S-cou