The Fourteenth Doctor Onslaught Equipped permanent isn't a planeswalker

Equipped permanent isn't a planeswalker and is a creature in addition to its other types

you may pay {0} rather than pay this spell's mana cost

trample Pay 2 life: Surveil 2

Trample Whenever Yidris deals combat damage to a player

each commander creature you control deals damage equal to its power to that creature

The Fourteenth Doctor Onslaught Equipped permanent isn't a planeswalkerWhen you cast this spell, reveal the top fourteen cards of your library. Put all Doctor cards revealed this way into your graveyard and the rest on the bottom of your library in a random order. You may have The Fourteenth Doctor enter as a copy of a Doctor card in your graveyard that was put there from your library this turn. If you do, it gains haste until end of turn.