You can save a ton of mana on the best activated abilities with this cost reducer, and there are others, but none are as efficient and come online as fast as Training Grounds
22, the Pokmon TCG Surging Sparks Elite Trainer Box is $74.82 at TCGplayer, compared to $82.94 at Amazon
Fodder Cannon (Urza's Destiny) Step 1: Find your cousin
When you would DigiXros this turn, this Digimon may replace 1 of the DigiXros requirements.Material Save 1 (When this Digimon would be deleted, you may place 1 card in this Digimon's DigiXros requirements from this Digimon's digivolution cards under 1 of your Tamers.) Lower Text [Your Turn] While this Digimon has [Shoutmon] in its name, it gets +2000 DP

$2.99 Discontinuity (Extended Art) Core Set 2021 Variants $7.99 Narset, Parter of Veils (0076 - Borderless) Bloomburrow Commander Decks Variants $1.49 Mutable Explorer Lorwyn Eclipsed $5.99 Consign // Oblivion Hour of Devastation $10.99 An Offer You Can't Refuse (0311 - Borderless) Foundations Variants $7.99 Spectral Deluge Kaldheim Commander Decks $4.49 Wan Shi Tong, All-Knowing (0182 - Extended Art) Avatar: The Last Airbender Eternal-Legal Variants $0.99 Gruesome Slaughter Battle for Zendikar $129.99 Force of Will Double Masters $57.99 Savannah Lions (Not Tournament Legal) Collectors Ed $10.99 Burning Wish Judgment $1.49 Waterbender Ascension Avatar: The Last Airbender 0 results found
Not only can this creature protect Wolverine, it can double his power with +2/+2 to push in more damage