Katsu, the Wanderer
Once per Turn Effect - When an attack action card you control hits, you may discard a card with cost 0. If you do, search your deck for a card with combo, banish it face up, then shuffle your deck. You may play it this turn.

Rhinar, Reckless Rampage
When you discard a card with 6 or more [Power] during your action phase, intimidate. (Target hero banishes face down a random card from their hand. At the beginning of the end phase, return all cards banished this way to their owners hand.)