Paste a decklist in the MTGO format. This only works with a 100-card list and will fail to check any cards with alternative names from "the Omenpaths". Any SIDEBOARD: or MAYBEBOARD: section is ignored. It checks Scryfall's Tagger data for cards tagged ramp or draw with mana value below 4 (which includes lands), then updates the "cheap card draw / mana ramp spells" slider and the average mana value slider above automatically after analysis. This is the only part of the app that needs internet. It calls Scryfall's public API for a moment when you click Analyze.

Paste a decklist in the MTGO format. This works with a 60-card minimum, 250-card maximum list (MTG Arena's limit) and will fail to check any cards with alternative names from "the Omenpaths". Any SIDEBOARD: or MAYBEBOARD: section is checked separately, up to 15 cards without a notice. It checks ramp and draw Scryfall Tagger data with mana value below 4 (which includes lands), then updates the ramp/draw and average mana value sliders above automatically after analysis. If you want to see how one specific card changes the land count, edit it in the text field above and re-analyze, or check in your deckbuilder of choice, since this tool only reports on the list as a whole. This is the only part of the app that needs internet.