Does Mundo's Might value change dynamically as cards are added to trash, including during chain resolution?

Ruling: Mundo's Might changes dynamically as the number of cards in your trash changes. During a chain, Might adjusts after each spell finishes resolving when game state is checked/cleaned up.

Sequence:

• Play a reaction spell that discards
• Spell finishes resolving
• Game state is checked/cleaned up
• Dr. Mundo's Might adjusts to reflect new trash count

Nuances:

• The dynamic nature of Might is why Mundo's second ability has you recycle from trash (it would reduce his Might)