Teferi, of the new gatewatch

Whenever a planeswalker you control enters the battlefield, search your library for a planeswalker
card and put it into your hand. Put a +1/+1
counter on Teferi, of the new gatewatch.
{t}{w}{u}: If you control Teferi, of the new
gatewatch and The planar engine, Meld. Activate
only if Teferi, of the new gatewatch has 5 or more
+1/+1 counters on it.