Investment Strategy I

Grants the unit additional maximum HP, either flat (like +150 Health) or percentage (like +6% max Health). It comes up whenever you stack Giant's Belt items, pick health-boost augments such as Giant and Mighty, or run the Old Growth trait, which permanently raises your strongest Old Growth champion's max Health every time an enemy dies near it. For the cross-round permanent stat-stacks angle specifically, see the dedicated permanent stat-stacks page.

The player-level economy resource — earned each round (base income + interest + win/loss streaks), spent on rerolling the shop, buying XP, and purchasing units. Augments grant flat gold, raise interest, or make kills drop gold; some items generate gold on takedown.

Round-end gold earned per 10 gold banked, capped at 5 by default. Economy augments raise the cap (max interest) or grant flat bonus gold "in interest" beyond it.