Mages' Contest [Invasion] Water [-20] which also builds 1x Sir

which also builds 1x Sir Hekhtur on foot

Set: Beta Edition Type: Creature — Spirit Rarity: Rare Cost: {B} Flying (This creature can't be blocked except by creatures with flying or reach

[When Attacking] [Once Per Turn] If a blue card is in this Digimon's digivolution cards

we need seeds

They are symbols of selfless commitment and the unbreakable loyalty of battle-brothers

Mages' Contest [Invasion] Water [-20] which also builds 1x SirSet: Invasion Type: Instant Rare Cost: {1}{R}{R} You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.