mtg anti burn cards at the Stake Burn at the Stake deals damage to target creature or player equal to three times the number of creatures tapped this way. Burn Them All | Uprising

You won't have to pay the commander tax to activate that ability, and activating that ability won't increase the commander tax to pay later

Instant Instant (CTRL to add secondary) Land Hive of the Eye Tyrant If you control two or more other lands, this land enters tapped

The most obvious use case for this card is recursion, but dont sleep on how easy it is to circumvent the exile clause: just flicker your stuff, and you dont need to worry

Cephalid Coliseum (Ext, S, Block) While not usable before threshold is achieved, and quite painful until then, the Coliseum provides a quick and easy way to filter your hand

The next closest is Legolas's Quick Reflexes as a great green response to a targeted spell

Starting a game with a companion basically means youre starting the game with an 8-card hand to your opponents 7