Gimli, Vengeful Naugrim

Modified creatures must attack each turn if able.
Whenever one or more creatures attack you,
distribute X +1/+1 counters among up to X
target creatures, where X is equal to the
number of attacking creatures, then Gimli,
Vengeful Naugrim, deals damage equal to
his power to target opponent.
{2}{r/w}: Put a +1/+1 counter on target creature
an opponent controls, draw a card.