For Land, depending on how the staking requirements are, there might be an opportunity to play to 50% ECR or less, staking your cards on Land till you are close to 100%. Rinse & repeat.

When land comes, it will definitely throw another spanner in the works with cards, especially summoners. Maybe its time for you to take up the Splinterfest Kraken offer of $100k packs....!lolz