Or instead, have this as his first ability: "As long as it's your turn, Gideon Blackblade is an X/X Human Soldier creature with indestructible that's still a planeswalker, where X is equal to the number of Plains you control." Or whatever template you want
The second thing Giants as a tribe have going for them is multi-format all-star Bonecrusher Giant
Ayara, Widow of the Realm / Ayara, Furnace Queen Ayara, Widow of the Realm gives you the chance to turn your creatures and artifacts into damage spells that can burn opponents or remove battles
In this quarter of a century, I've changed a lot
Notably, white has no cheap interaction (just Gods Willing as a good trick and and Repel the Darkness as a bad trick) and Prey Upon should be a bit better than normal because of how well it synergizes with Heroic
Sheoldred, the Apocalypse solves both of those issues, and can be an excellent wheel commander