→ Infinite power and toughness for most creatures you control until end of turn, Infinite mana lands you control can produce, Infinite untap of creatures you control
→ Infinite power and toughness for most creatures you control until end of turn, Infinite mana lands you control can produce, Infinite untap of lands you control
→ Infinite power and toughness for most creatures you control until end of turn, Infinite mana lands you control can produce, Infinite untap of creatures you control
Activated abilities of creatures you control cost less to activate, where X is Agatha's power. This effect can't reduce the mana in that cost to less than one mana.
: Other creatures you control get +1/+1 and gain trample and haste until end of turn.
Agatha turns every activated ability into a bargain, reducing costs by her power (minimum one mana). Pump her power with +1/+1 counters so creature abilities become absurdly cheap, then chain activations to generate mana, draw, or combo. You grind value through repeatable abilities and close with overwhelming activated-ability engines or an overrun-style alpha strike.
Massive cost reduction makes activated-ability creatures (mana dorks, untappers, pingers) extremely efficient
Scales explosively with +1/+1 counter support, snowballing into near-free abilities
Built-in anthem/overrun for a reliable creature finish
Low mana value (2) means she comes down early and starts saving mana immediately
Heavily commander-dependent; abilities cost full price without Agatha on board
Vulnerable to spot removal and board wipes that reset your counter investment
She starts at 1 power, so reductions are small until you commit resources to grow her
Counter and equipment investment can fall apart to a single removal spell