Beowulf, Refuted Hunter

Trample
At the beginning of your upkeep, but a Rune counter on each equipment you control attached to Beowulf.
{r}, remove a Rune counter from an equipment attached to an equipment you control: Beowulf deals 3 damage to target creature blocking or blocked by it.
{w}, remove a Rune counter from an equipment attached to an equipment you control: Beowulf cannot be blocked by creatures with power 3 or greater this turn.