Just out of curiosity: what were the boss's stats? How were they calculated? What would be the bonus from the shards if we inserted four red tiles? Four green tiles? Four yellow tiles?
+1000 health, +100 damage, +25% magic resistance.
Core: +25 to strength.
Blue Tile
+25% resistance to physical damage, +25% resistance to negative effects.
Core: +25 to intelligence
Green Tile
+20 to accuracy, evasion, and initiative.
Core: +25 to dexterity
Yellow Tile
1. Parry.
2. Armor penetration.
3. Whirlwind.
4. Restore 100% health at the start of the turn.
Core: +5 to luck.