Helm of Chatzuk: Limited Edition Beta Future the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

put a +1/+1 counter on each creature you control

Enchant artifact You control enchanted artifact

Ferocious — If you control a creature with power 4 or greater

Threshold — {U}

Helm of Chatzuk: Limited Edition Beta Future the player can activate mana{1}, {T}: Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)