Plains

Tithe

Search your library for a Plains card. If target opponent controls more lands than you, you may search your library for an additional Plains card. Reveal those cards, put them into your hand, then shuffle.

Sentinel

{0}: Change this creature's base toughness to 1 plus the power of target creature blocking or blocked by this creature. (This effect lasts indefinitely.)

Honor Guard

{W}: This creature gets +0/+1 until end of turn.