Adamant Will

The combat trick that doubles as a counterspell against removal, and the two functions fight for the same casting window. The +2/+2 wants to resolve during the declare blockers step, before combat damage locks in, to steal a fight the opponent thought they had won on the math. The indestructible wants to be held up against a targeted kill spell or a board wipe. Both modes live on one card at instant speed, which is the whole tension: you cannot bait out a removal spell with the threat of indestructible and also bank the pump for combat, because the card only resolves once. The indestructible clause is the more durable half. A pump effect is a temporary blowout, but granting indestructible answers an entire category of removal: destroy effects, lethal combat damage, and most board wipes all slide off. It does nothing against exile, bounce, sacrifice, or minus-toughness, which is the structural ceiling on a spell like this and the reason it reads as a flexible blocker-protector rather than a hard answer. The design sits in a long line of white instant-speed creature buffs that fold protection into the pump, descendants of the basic Giant Growth template with a defensive rider bolted on, trading raw size for the ability to keep a key creature alive through the most common kinds of removal a turn can throw at it.