Ice Knight | Permafrost Knight [Champion]

[Ryli]

NAME: Ice Knight ELEMENT: Water COST: 8 TYPE: Creature ATK | HP: 3 | 5 TEXT: : Ice Shield You take no damage for 1 turn. Ice Knight and your weapon are congealed.	NAME: Permafrost Knight ELEMENT: Water COST: 8 TYPE: Creature ATK | HP: 3 | 6 TEXT: : Ice Shield You take no damage for 1 turn. Permanfrost Knight and your weapon are frozen

ART: N/A IDEA: Ryli NOTES: SERIES: Card Design Competition: Champion

[Aves]

A tricky mechanic to balance. Some concerns:

How is this invulnerability to damage represented? Would killing ice knight remove the invulnerability?
Can this be used to bypass Shard of Sacrifice's HP cost?
Quintessence removes the frozen status. How does this interact with Ice Knight? The same question for immaterial weapons.