Skulk.

Urban Artist — Whenever a creature enters the battlefield under an opponent's control, target permament you control phases out. (While it’s phased out, it’s treated as though it doesn’t exist. It phases in before its controller untaps during their next untap step.)

Streetwise — Whenever you would remove one or more counters from a permament you control, instead remove half those counters, rounded up. This ability triggers only twice each turn.