: Draw a card. You may put a land card from your hand onto the battlefield.
Gretchen turns surplus mana into cards and extra land drops, snowballing into a value engine that outpaces the table. You ramp early, deploy Gretchen on turn two or three, then sink mana into her each turn to refill your hand and ramp simultaneously. Eventually you generate so much mana and so many cards that you win with a big payoff spell, landfall engine, or sheer card advantage.
Repeatable card draw AND ramp on a 2-mana commander, an exceptional rate
Activated ability dodges sorcery-speed restrictions and works at instant speed
Pairs perfectly with mana doublers and untap effects for explosive turns
Hard to keep down — even after a wrath she keeps refueling your hand
Enables landfall and extra-land-drop synergies naturally
Needs lots of mana to abuse, so she's slow without ramp support
Ability draws and ramps but provides no board presence or protection
Vulnerable to graveyard/hand attack and counterspell-heavy control
No built-in way to close games — relies on payoff cards
Repeated activations can paint a target as the table's value engine