It didn't end up working out and the cards were supposed to have been destroyed
When a Mega Evolution ex card is knocked out, it awards three Prize Cards, reflecting its power and strategic importance in gameplay
Generally, the way tribal decks work (with a few exceptions I'll mention later) is that they want to play a lot of creatures and then cards that make those creatures' types matter
(1) Target 1 Therions monster in your GY
Main Deck 40 Elemental HERO Woodsman X EARTH Level 4 [ Warrior / Effect ] ATK 1000 DEF 2000 Once per turn, during your Standby Phase: You can add 1 "Polymerization" from your Deck or Graveyard to your hand
It does, however, mention vanilla creatures, or creatures with no abilities, and Bears excel at being boring, bumbling 2/2 tokens with no other text to speak of