mtg cards like training grounds WINNING WITH GROUNDS! Rebel Stompy (Legacy Rebel Tribal with Mirror Entity MTG) Activated abilities of creatures you control cost up to 2 less to activate Training Grounds

This is mana without any specific color, represented by a diamond-like shape in a gray circle

Its a big creature with trample, puts more big creatures into play, and allows for creature-based removal

For gameplay strategy, this version of Stitch costs a lot of ink, but its defense score of eight makes it difficult to banish from play, giving a great opportunity for the player to get two lore each turn by questing if they choose

Whenever a card is put into an opponent's graveyard from anywhere, put a +1/+1 counter on The Haunt of Hightower

There are multiple ways to stop opponents from attacking you: Mana tax cards (Ghostly Prison) that force the opponent to choose between casting spells and attacking you Damage reduction cards (Spike Weaver) that threaten to Fog oncoming damage, rendering attacks useless Rattlesnake cards (Archon of Justice) that threaten to blow up the attacking opponent's resources The sticking point is that these pillowfort cards are all visible on the board, so opponents know what could happen if they attack you and convinces them to go attack someone else

The Showcase Variant is selling for around $15 at the moment, having spiked from around $2.50